write the hypotheses to test if the success rate for art at this clinic is significantly higher than the success rate reported by the cdc.

Answers

Answer 1

In contrast to the CDC's reported success rate, the success rate for art at this clinic is substantially greater.

what is null hypothesis ?

A claim or assumption that there is no statistically significant difference between two populations or sets of data is known as the null hypothesis. It serves as the beginning point for statistical hypothesis testing and is typically indicated as H0. According to the null hypothesis, any observed difference between the populations or data sets is the result of sampling error or random chance rather than a genuine difference.

given

The success rate for art at this clinic is not statistically different from the CDC's claimed success rate.

In contrast to the CDC's reported success rate, the success rate for art at this clinic is substantially greater.

To know more about null hypothesis visit

https://brainly.com/question/28920252

#SPJ1


Related Questions

Please helppp answer A through E. 100 pts plus first person to answer brainliest

Answers

Refer to pic...........

There are two coins in a bin. When one of them is flipped it lands on heads with probability 0.6 and when the other is flipped, it lands on heads with probability 0.3. One of these coins is to be chosen at random and then flipped. a) What is the probability that the coin lands on heads? b) The coin lands on heads. What is the probability that the chosen coin was the one that lands on heads with probability 0.6?

Answers

When one of the coin is flipped it lands on heads with probability 0.6 and when the other is flipped, it lands on heads with probability 0.3, then the probability that the coin lands on heads is 0.45 and the coin lands on heads but the probability that the chosen coin was the one that lands on heads with probability 0.6 is 0.67.

a) The probability of getting heads, we can use the law of total probability.

There are two coins, and each has a probability of landing on heads. So we can calculate the probability of getting heads by weighting each coin's probability by its probability of being chosen.

Therefore,

P(heads) = P(heads from coin 1) * P(choose coin 1) + P(heads from coin 2) * P(choose coin 2)

Plugging in the values, we have:

P(heads) = 0.6 * 0.5 + 0.3 * 0.5 = 0.45

Therefore, the probability of getting heads is 0.45.

b) The probability that the chosen coin was the one that lands on heads with probability 0.6, given that the coin lands on heads, we need to use Bayes' theorem. Specifically, we have:

P(choose coin 1 | heads) = P(heads from coin 1 | choose coin 1) * P(choose coin 1) / P(heads)

Plugging in the values, we have:

P(choose coin 1 | heads) = 0.6 * 0.5 / 0.45 = 0.67

Therefore, the probability that the chosen coin was the one that lands on heads with probability 0.6, given that the coin lands on heads, is 0.67.

To practice more questions about probability:

https://brainly.com/question/25870256

#SPJ11

Which two angles in the triangles below are complementary?

I NEED HELPPPPPPPP

Answers

Answer:

Step-by-step explanation:

Refer to attached diagram

∠CAD = 180 - (110 + 35) = 35°    (angle sum triangle = 180°)

∠BCA = 180 -110 = 70°                 (straight angle = 180°)

∠BAC = 180 - (55 + 70) = 55°      (angle sum triangle = 180°)

∠CAD + ∠BAC = 90° (complementary)

Solve and then answer the question below.
*MUST SHOW WORK*
Half a number plus eight is fourteen minus a number. How many solutions does this equation have?

Answers

To answer the question, this equation has only one solution, which is x = 4.

What is equation?

An equation is a mathematical statement that shows the equality between two expressions. It usually consists of two sides, the left-hand side (LHS) and the right-hand side (RHS), separated by an equal sign (=).

The expressions on both sides can contain variables, constants, and mathematical operations such as addition (+), subtraction (-), multiplication (*), division (/), exponentiation (^), and others. The goal of an equation is to find the values of the variables that make both sides equal.

by the question.

Let's start by setting up the equation:

[tex]1/2x + 8 = 14 - x[/tex]

where x is the number, we're trying to find.

Now let's simplify the equation by combining like terms:

[tex]3/2x + 8 = 14[/tex]

Subtracting 8 from both sides:

[tex]3/2x = 6[/tex]

Multiplying both sides by 2/3:

[tex]x = 4[/tex]

So, the solution to the equation is x = 4.

To learn more about equation:

https://brainly.com/question/30695173

#SPJ1

what percentage of defective lots does the purchaser reject? find it for . given that a lot is rejected, what is the conditional probability that it contained 4 defective components

Answers

The purchaser rejects 26.01% of the lots that contain five or more defective components, and the conditional probability of having four defective components given that the lot was rejected is 0.1653.

How do we calculate the probability?

The percentage of defective lots that the purchaser rejects can be found by using the given formula. We can also calculate the conditional probability of having four defective components, given that the lot was rejected. Here's how to do it.

Let p be the probability that any component is defective. Then the probability that any component is non-defective is 1-p.

According to the given data, a lot is rejected if and only if there are at least five defective components in it. Let q be the probability that a lot is defective, i.e. the probability that there are five or more defective components in a lot.

Then, q = P(X ≥ 5), where X is the number of defective components in the lot. We can find the probability of rejecting a lot by subtracting the probability of accepting the lot from 1. So, we have:

P(reject) = 1 - P(accept)

P(accept) = P(X ≤ 4)

Now, we need to find q. We can do this by using the binomial distribution:

[tex]P(X = k) = C(n, k) * pk * (1-p)n-k[/tex]

where C(n, k) is the number of ways to choose k items out of n items. Here, n = 20 (the number of components in a lot). So,

[tex]q = P(X \geq  5) = 1 - P(X\leq  4) = 1 - [P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4)][/tex]

[tex]q = 1 - [C(20, 0) * p0 * (1-p)20-0 + C(20, 1) * p1 * (1-p)20-1 + C(20, 2) * p2 * (1-p)20-2 + C(20, 3) * p3 * (1-p)20-3 + C(20, 4) * p4 * (1-p)20-4][/tex]

[tex]q = 1 - [1 * p0.2 * (1-0.2)20-0 + 20 * p0.2 * (1-0.2)20-1 + 190 * p0.2 * (1-0.2)20-2 + 1140 * p0.2 * (1-0.2)20-3 + 4845 * p0.2 * (1-0.2)20-4][/tex]

[tex]q = 0.2601[/tex] (rounded to four decimal places)

So, the purchaser rejects 26.01% of the lots that contain five or more defective components.

Now, we need to find the conditional probability that a lot contained four defective components given that it was rejected. Let R be the event that a lot is rejected, and let F be the event that a lot contains four defective components.

Then, we have to find P(F | R), the conditional probability of F given R. We can use Bayes' theorem to find this:

P(F | R) = P(R | F) * P(F) / P(R)

where P(R | F) is the probability of rejecting a lot given that it contained four defective components, P(F) is the prior probability of a lot containing four defective components, and P(R) is the overall probability of rejecting a lot.

[tex]P(F) = C(20, 4) * p4 * (1-p)20-4 = 0.186[/tex]

[tex][tex]P(R) = P(X \geq  5) = q = 0.2601[/tex][/tex]

[tex]P(R | F) = P(X \geq  5 | X = 4) = P(X = 5) / P(X = 4) = C(20, 5) * p5 * (1-p)20-5 / C(20, 4) * p4 * (1-p)20-4[/tex]

[tex]P(R | F) = 0.2308[/tex]

So, we have:

[tex]P(F | R) = P(R | F) * P(F) / P(R)[/tex]

[tex]P(F | R) = 0.2308 * 0.186 / 0.2601[/tex]

[tex]P(F | R) = 0.1653[/tex] (rounded to four decimal places)

Therefore, the conditional probability of having four defective components given that the lot was rejected is 0.1653.

See more about conditional probability at: https://brainly.com/question/10739997

#SPJ11

A plane flies between two cities 1836KM apart it travels at an average speed of 850 km/h calculate how long the flight takes give your answer in hours

Answers

To calculate the time taken by the plane to fly between two cities, we can use the formula:

Time = Distance / Speed

Here, distance = 1836 km and speed = 850 km/h.

Plugging these values in the above formula, we get:

Time = 1836 km / 850 km/h
≈ 2.16 hours (rounded to two decimal places)

Therefore, it takes approximately 2.16 hours for the plane to complete its journey between two cities at an average speed of 850 km/h.

An automated car wash serves customers with the following serial process: pretreat, wash, rinse, wax, hand dry. Each of these steps is performed by a dedicated machine except for the hand-dry step, which is performed manually on each car by one of three workers. The steps of the process have the following processing times:
Pretreat: 2 minute per car
Wash: 7 minutes per car
Rinse: 1 minutes per car
Wax: 4 minutes per car
Hand dry: 6 minutes per car
Which resource is the bottleneck of this process? Round your answer to 2 decimal places. If the car wash has a demand of 14 cars per hour, what is the flow rate of the process? cut. customers per hour Round your answer to 2 decimal places. If the car wash has a demand of 14 cars per hour, what is the utilization of the machine that

Answers

The utilization of the machines is the processing time for the machines divided by the cycle time: 14 / 20 = 0.7 or 70%.

The bottleneck resource in this process is the hand-dry step, as it is the only step that is performed manually and thus has limited capacity. The processing time for the hand-dry step is 6 minutes per car, which is longer than any of the other steps.

To calculate the flow rate of the process, we need to determine the cycle time, which is the time it takes to process one car through all the steps. The cycle time is the sum of the processing times for all the steps, which is 2 + 7 + 1 + 4 + 6 = 20 minutes per car.

To convert this to customers per hour, we divide the number of minutes per hour (60) by the cycle time: 60 / 20 = 3 customers per hour.

Therefore, the flow rate of the process is 14 cars per hour x 3 customers per hour = 42 customers per hour.

To calculate the utilization of the machines, we need to calculate the total time that the machines are processing cars. Since all the steps except for the hand-dry step are performed by dedicated machines, the total processing time for the machines is 2 + 7 + 1 + 4 = 14 minutes per car.

Therefore, the utilization of the machines is the processing time for the machines divided by the cycle time: 14 / 20 = 0.7 or 70%.

For more questions like Machines click the link below:

https://brainly.com/question/30695896

#SPJ11

Determine the domain D of the mapping f:x→x²+1, if R-(2, 5, 10) is the range and f defined on D. Hence Find the f-¹(5). If f(x)=0, find the values of x​

Answers

There are no values of x that satisfy the equation f(x) = 0.

what is a function?

A function is a mathematical concept that relates a set of inputs (known as the domain) to a set of outputs (known as the range), such that every input corresponds to exactly one output.

In other words, a function is a rule that assigns each element of the domain to a unique element of the range.

We are given that the mapping f(x) = x² + 1, and that the range of f is R - {2, 5, 10}.

To determine the domain of f, we need to consider what values of x will result in a valid output for f(x). Since f(x) is defined as x² + 1, we know that f(x) will always be greater than or equal to 1. Therefore, the domain of f is all real numbers, or D = R.

To find f⁻¹(5), we need to solve for x when f(x) = 5. That is, we need to solve the equation x² + 1 = 5. Rearranging, we get x² = 4, so x = ±2. Therefore, f⁻¹(5) = {-2, 2}.

Finally, to find the values of x when f(x) = 0, we need to solve the equation x² + 1 = 0. However, this equation has no real solutions, since the square of a real number is always non-negative.

Therefore, there are no values of x that satisfy the equation f(x) = 0.

To learn more about Function from the given link:

https://brainly.com/question/12431044

#SPJ1

A 5x5x5 cube is formed by assembling 125 unit cubes. Nine unit squares are painted on each of the six faces of the cube according to the pattern shown. How many of the 125 unit cubes have no paint on them?

Answers

In a 5x5x5 cube, 125-unit cubes are formed by assembling. According to the pattern shown, nine-unit squares are painted on each of the six faces of the cube.  So the number of unit cubes that have no paint on them is 71.

     To calculate the total number of unit cubes, multiply the number of unit cubes in each dimension.

                  Thus, 5 × 5 × 5 = 125 cubic units.

      Since there are 6 faces to be painted, and each face has nine painted unit cubes, the total number of painted cubes is

                  6 × 9 = 54.

         Each painted cube has three faces painted since the cube has three faces of the same size.

          There are eight cubes on each of the edges that have three faces painted, so there are

                 8 × 12 = 96 of them that have three faces painted.

           There are 12 edge cubes in total, all of which have two painted faces, for a total of

                 12 × 2 = 24 cubes that have two painted faces.

            There are 6 center cubes in the cube, all of which have one painted face, for a total of 6 cubes with one painted face.

            Each painted cube contributes one face to the total. As a result, the number of unpainted cubes is

                 125 - 54 = 71.

       The number of unit cubes that have no paint on them is 71.

Learn more about cubes paint at: https://brainly.com/question/24898008

#SPJ11

evaluate the diagram below, and find the measures of the missing angles

Answers

Answer:

A=100

B= 80

C=80

D=100

E=80

F=80

G=100

Step-by-step explanation:

match each of the following concepts with its definition: estimator answer 1 a random variable that depends on the information in the sample. estimate answer 2 a specific value of a random variable that approximates an unknown parameter. unbiasedness answer 3 when the expected value of the estimator is equal to the population parameter. bias answer 4 the difference between the expected value of the estimator and the population parameter. most efficient estimator answer 5 an unbiased estimator that has the minimum variance. relative efficiency

Answers

A relative efficiency greater than 1 means that the estimator is less efficient than the most efficient estimator. A relative efficiency less than 1 means that the estimator is more efficient than the most efficient estimator.

Estimator: A random variable that depends on the information in the sample.Estimate: A specific value of a random variable that approximates an unknown parameter.Unbiasedness: When the expected value of the estimator is equal to the population parameter.Bias: The difference between the expected value of the estimator and the population parameter.Most Efficient Estimator: An unbiased estimator that has the minimum variance.Relative Efficiency: Relative efficiency is a measure of the efficiency of an estimator. It is a ratio of the variance of an estimator to the variance of the most efficient estimator. A relative efficiency of 1 means that the estimator is as efficient as the most efficient estimator

for such more questions on relative efficiency

https://brainly.com/question/12475011

#SPJ11

please help!! there are multiple parts that i dont get

Answers

Answer:

  (a, b) alternate interior angles at M and N, and at A and B are congruent

  (c) the triangles are congruent by SAS and by ASA (and MX = NX)

  (d) angles are no longer congruent, so the triangles are not congruent. The radii are given as congruent, but the chords cannot be shown congruent.

Step-by-step explanation:

Given same-size circles A and B, externally tangent to each other at X, each with chords MX and NX, you want to know what can be concluded if AM║BN, and what is unprovable if those segments are not parallel.

Same-size circles

The circles being the same size means all the radii are congruent. This is shown by the single hash marks in the attached diagram.

(a) Angles

Alternate interior angles where a transversal crosses parallel lines are congruent. If AM║BN, this means the angles marked with a single arc are congruent, and the angles marked with a double arc are congruent. These are the alternate interior angles at transversal MN and at transversal AB.

(b) Corresponding parts

If AM║BN, in addition to the given congruences, we also know ...

all radii are congruent — given in the problem statementangles M and N are congruent (see above)angles A and B are congruent (see above)the vertical angles at X are congruent to each other and to angles M and N (isosceles triangles) (AMBN is a parallelogram.)

(c) Congruent triangles

∆AMX ≅ ∆BNX by SAS or ASA (take your pick).

(d) Not parallel

If AM and BN are not parallel, MN is not a straight line through X, the angles at A and B are not congruent, and the angles at M and N are not congruent. (We assume segment AB still goes through X.)

__

Additional comment

Triangles MAX and NBX are isosceles, so their base angles are congruent. If X lies on MN, then AM and BN must be parallel, since the vertical angles at X will be congruent along with the other base angles at M and N. If AM and BN are not parallel, point X cannot lie on segment AB.

1. The table shows the Total Expenses y (in dollars) of the College or University for year 2020-2021 and 2021-2022. Mine it's 21,211
a) Write a function that represents the Total Expenses y (in dollars) of that College or University you would like to attend after t years.

b) Use the function to estimate the Total Expenses your first year of school. *This year (t) is not the same for everyone since there are 8th graders to 11th graders in the class.



c) Sketch a graph (by hand) to model your function.


d) Identify the y-intercept and asymptotes of the graph. Find the domain and range of your function. Then describe the end behavior of the function.

Answers

Answer:

a) We can use the given data to find the rate of change (slope) of the expenses over one year, and then use it to write the equation of a line in slope-intercept form:

Slope m = (Total Expenses in 2021-2022 - Total Expenses in 2020-2021) / 1 year

m = (23,500 - 21,211) / 1 = 2,289

Using the point-slope form of a line, we can write the equation as:

y - 21,211 = 2,289(t - t1), where t1 is the year 2020-2021.

Simplifying, we get:

y = 2,289t + 18,922

b) To estimate the Total Expenses for your first year of school, you need to know what year you will start. Let's say you will start in 2024-2025, which is 3 years from 2021-2022.

Then, plugging in t = 3 into the equation we just found, we get:

y = 2,289(3) + 18,922 = 23,789

So the estimated Total Expenses for your first year of school would be $23,789.

c) The graph of the function y = 2,289t + 18,922 is a straight line with a positive slope of 2,289. It passes through the point (0, 18,922) on the y-axis, and it will extend indefinitely in both directions.

d) The y-intercept of the graph is the point (0, 18,922), which represents the Total Expenses for the year 2020-2021. There are no vertical asymptotes, but the graph will approach a horizontal asymptote as t goes to infinity, since the expenses cannot increase indefinitely. The domain of the function is all real numbers, and the range is all values greater than or equal to 18,922. As t increases, the function increases without bound, so the end behavior is that the graph goes up to the right.

A road running north to south crosses a road going east to west at the point P. car A is driving north along the first road, and an airplane is flying east above the second road. At a particular time the car is 15 kilometers to the north of P and traveling at 55 km/hr, while the airplane is flying at speed 185 km/hr 10 kilometers east of P at an altitude of 2 km. How fast is the distance between the car and the airplane changing? 148.38 km/hr Draw a sketch that shows the roads intersecting at point P, Car A, and the airplane. Label the horizontal distance from P to the airplane x and the vertical distance from P to Car A as y, and let z represent the altitude of the plane. What equation relates the distance from Car A to the plane with x, y and z? Using implicit differentiation, solve for the appropriate derivative that answers the "how fast" question.

Answers

The distance between car A and the airplane is changing at a rate of 148.38 km/hr.

To better understand this answer, we can draw a sketch of the scenario and label the variables accordingly.

Let x represent the horizontal distance from P to the airplane, y the vertical distance from P to car A, and z the altitude of the airplane. The equation that relates the distance from car A to the plane can be written as:

[tex]d^2 = (x^2 + y^2 + z^2)[/tex]

We can use implicit differentiation to solve for the derivative of this equation with respect to time, which answers the “how fast” question. The derivative of the equation is:

x = 185t (horizontal distance from P to airplane)

y = 15 - 55t (vertical distance from P to car)

z = 2 (altitude of airplane)

Now we can substitute these expressions into our equation for the distance between the car and the airplane, and take the derivative with respect to time:

distance between car and airplane = sqrt((185t)^2 + (15 - 55t)^2 + 2^2)

d/dt(distance between car and airplane) = d/dt(sqrt((185t)^2 + (15 - 55t)^2 + 2^2))

= 1/2 * (185^2 * 2t + (15 - 55t)(-55)) / sqrt((185t)^2 + (15 - 55t)^2 + 2^2)

Evaluating this expression at t = 0 (the time when the car is at its closest point to the airplane), we get:

d/dt(distance between car and airplane) = 1/2 * (185^2 * 2(0) + (15 - 55(0))(-55)) / sqrt((185(0))^2 + (15 - 55(0))^2 + 2^2)

= 1/2 * (-825) / sqrt(15^2 + 2^2)

= -412.5 / sqrt (229)

The negative sign indicates that the distance between the car and the airplane is decreasing, as expected. Finally, we can take the absolute value of this expression to get the speed at which the distance is changing:

d/dt (distance between car and airplane)| = 412.5 / sqrt (229) ≈ 148.38 km/hr.

For more similar questions on differentiation

https://brainly.com/question/30572604

#SPJ11

Transversals of Parallel lines:

corresponding angles

Answers

In solving the given question, we can say that ∠ZEFI and ∠ZJIK are equal parallel lines  by  co-exterior angles property.

what is parallel lines?

Geometry parallel lines are coplanar infinite lines that do not intersect anywhere. In a given three-dimensional space, parallel faces are faces that never intersect. Curves with a constant minimum distance between them and no tangents or intersections are said to be parallel. Two lines that lie in the same plane, are equally spaced, and never intersect are called parallel lines in geometry. Can be applied horizontally or vertically. Parallel lines are found in everyday objects such as railroad tracks, rows of books, and crosswalks.  

∠ZHIK and ∠ZEFI are equal by alternative angles property.

∠ZGFD and ∠ZEFD are equal by co-interior angles property.

∠ZGFD and ∠ZEFI are equal by interior alt. angles property.

∠ZEFI and ∠ZJIK are equal by  co-exterior angles property.

To know more about parallel lines visit:

https://brainly.com/question/16701300

#SPJ1

In Exercises 3-6, copy and complete the statement. State which theorem you used.

3. If AE = DE, then /___= /___
4. If AB = EB, then /___ = /___
5. If D = CED, then /___= /___
6. If EBC = ECB, then /___ = /___​

Answers

If AE = DE, then ∠A = ∠D. This follows from the Side-Angle-Side (SAS) Congruence Theorem.

What is angle?

An angle is a measure of the amount of turn between two lines or planes. It is usually measured in degrees or radians, with a full turn being equal to 360 degrees or 2π radians. Angles can be used to describe the orientation of objects in two-dimensional and three-dimensional space. They can also be used to describe the size of an opening or formed between two intersecting lines or planes.

.4. If AB = EB, then ∠B = ∠E. This follows from the Side-Angle-Side (SAS) Congruence Theorem.
5. If D = CED, then ∠DCB = ∠ECB. This follows from the Angle-Side-Angle (ASA) Congruence Theorem.
6. If EBC = ECB, then ∠BCE = ∠BCE. This follows from the Reflexive Property of Congruent Angles.

To know more about angle click-
https://brainly.com/question/460763
#SPJ1

If AE = DE, then ∠A = ∠D. This follows from the Side-Angle-Side (SAS) Congruence Theorem.

What is angle?

An angle is a measure of the amount of turn between two lines or planes. It is usually measured in degrees or radians, with a full turn being equal to 360 degrees or 2π radians. Angles can be used to describe the orientation of objects in two-dimensional and three-dimensional space. They can also be used to describe the size of an opening or formed between two intersecting lines or planes.

.4. If AB = EB, then ∠B = ∠E. This follows from the Side-Angle-Side (SAS) Congruence Theorem.
5. If D = CED, then ∠DCB = ∠ECB. This follows from the Angle-Side-Angle (ASA) Congruence Theorem.
6. If EBC = ECB, then ∠BCE = ∠BCE. This follows from the Reflexive Property of Congruent Angles.

To know more about angle click-
https://brainly.com/question/25716982
#SPJ1

There are 1200 students in a school if 780 of them are girls what is the percentage of boys in the school?

Answers

We divide the number of boys by the total number of students (1200) and multiply by 100. Percentage of boys = (420/1200) x 100% = 35%.

To find the percentage of boys in the school, we need to subtract the number of girls from the total number of students, then divide by the total number of students and multiply by 100 to get the percentage.

Number of boys = total number of students - number of girls

Number of boys = 1200 - 780

Number of boys = 420

Percentage of boys = (number of boys / total number of students) x 100

Percentage of boys = (420 / 1200) x 100

Percentage of boys = 35

Therefore, the percentage of boys in the school is 35%.

Learn more about percentage here: brainly.com/question/29306119

#SPJ4

Alfonso wants to purchase a pool membership
for the summer. He has no more than y dollars to
spend. The Aquatics Club charges an initial fee
of $75 plus $20 per month. The Swimming Hole
charges an initial fee of $15 plus $65 per month.
Write a system of inequalities that you can use to
determine which company offers the better deal.
Let x represent the number of months.

Answers

The system of inequalities of the company with the better offer is 75 + 20x ≤ y and 15 + 65x ≤ y

Identifying the system of inequalities

Let's use A to represent the total cost (in dollars) of purchasing a pool membership from the Aquatics Club,

Let S represent the total cost of purchasing a pool membership from the Swimming Hole.

Then we can write the following system of inequalities:

A = 75 + 20x (total cost of Aquatics Club membership)

S = 15 + 65x (total cost of Swimming Hole membership)

Alfonso has no more than y dollars to spend

So, we have

75 + 20x ≤ y

15 + 65x ≤ y

Hence, the system is 75 + 20x ≤ y and 15 + 65x ≤ y

Read more about system of inequalities at

https://brainly.com/question/23093488

#SPJ1

Ten bags each contain a different number of marbles. The number of marbles in each bag ranges from 1 to 10. Five friends take two bags each. Amina got 5 marbles. Breanna got 7 marbles. Chyna got 9 marbles. Deion got 15 marbles. How many marbles did Emila get?

Answers

Answer:

Step-by-step explanation:

so their is probably about 20 or 10 marbles in each bag so if they take them just kinda subtract the amount each kid got to see how many were left for emila to get I think that’s how you do if not then I was happy to help and I hope you get better help

Transcranial magnetic stimulation (TMS) is a noninvasive method for studying brain function, and possibly for treatment as well. In this technique, a conducting loop is held near a person's head. When the current in the loop is changed rapidly, the magnetic field it creates can change at a rate of 3.00 104 T/s. This rapidly changing magnetic field induces an electric current in a restricted region of the brain that can cause a finger to twitch, a bright spot to appear in the visual field, or a feeling of complete happiness to overwhelm a person. If the magnetic field changes at the previously mentioned rate over an area of 1.75 10-2 m2, what is the induced emf?

Answers

The induced emf in a region of the brain when a conducting loop is held near a person's head and the current in the loop is changed rapidly, is equal to -525 V.


The induced emf can be calculated using Faraday's law of electromagnetic induction, which states that the emf induced in a loop of wire is equal to the rate of change of magnetic flux through the loop.

The magnetic flux (Φ) is equal to the product of the magnetic field (B) and the area (A) through which it passes. Therefore, the induced emf (ε) is given by:

ε = -dΦ/dt ⇒ -B dA/dt.

Where the negative sign indicates that the emf is induced in a direction that opposes the change in magnetic flux.

In this problem, the magnetic field changes at a rate of 3.00 × 10^4 T/s over an area of 1.75 × 10^-2 m^2. Therefore, the induced emf is:
Plugging in our values, we get:
E = (-3.00 10^4 T/s)(1.75 10^(-2) m^2)/(1 s)
E = -525 V


Therefore, the induced emf, in this case, is -525 V. Here, the negative sign shows that the emf is induced in a direction that opposes the change in magnetic flux

To know more about the "induced emf": https://brainly.com/question/13744192

#SPJ11

the mean credit card debt for a u.s. household is $7,115 with o standard deviation of $2,160. this mean is such a large value because of a few deeply indebted households. if a random sample of 50 us households is selected, what is the approximate probability that the mean credit card debt for the sample exceeds $7,500?

Answers

The approximate probability that the mean credit card debt for a sample of 50 US households will exceed $7,500 is , based on a normal distribution with a mean of $7,115 and a standard deviation of $2,160.

What is the z-score formula?

The z-score formula is a statistical method used to calculate the standard deviation of a raw score or data point relative to the mean of the group of raw scores or data points. It is given as:

[tex]z = \frac{x - \mu}{\sigma}[/tex]

where z is the z-score, x is raw score, μ is the mean, and σ is the standard deviation.

The approximate probability can be calculated as follows:

First, find the standard error of the mean: [tex]SE = \frac{\sigma}{\sqrt{n}}[/tex]

[tex]SE = \frac{2,160}{\sqrt{50}}\\\\SE = 305.39[/tex]

Secondly, find the z-score: [tex]z = \frac{\overline{x} - \mu}{SE}[/tex]

[tex]z = \frac{7,500 - 7,115}{305.39}\\\\z = 1.263[/tex]

The probability that a z-score will be greater than 1.263 is 0.1038 from the standard normal table or calculator.

Therefore, the approximate probability is 0.1038 or 10.38%.

Learn more about Z-score formula here:

https://brainly.com/question/25638875

#SPJ11

Can 3 feet, 3 feet and 7 feet create a triangle explain why or why not

Answers

The given lengths of 3 feet, 3 feet, and 7 feet cannot form a triangle because they do not satisfy the Triangle Inequality Theorem, which is the sum of the lengths of any two sides is greater than the length of the third side.

To form a triangle, the sum of the lengths of any two sides of the triangle must be greater than the length of the third side. This is known as the Triangle Inequality Theorem.

Let's apply this theorem to the given lengths of 3 feet, 3 feet, and 7 feet:

The sum of the first two sides is 3 + 3 = 6 feet, which is less than the length of the third side of 7 feet. So, the first two sides cannot form a triangle.

The sum of the first and third sides is 3 + 7 = 10 feet, which is greater than the length of the second side of 3 feet. However, the sum of the second and third sides is 3 + 7 = 10 feet, which is also greater than the length of the first side of 3 feet.

Therefore, neither of the two combinations of sides satisfy the Triangle Inequality Theorem, and so it is impossible to form a triangle with sides of 3 feet, 3 feet, and 7 feet.

To learn more about triangle click on,

https://brainly.com/question/18959763

#SPJ4

if the length of a rectangle is decreased by 4 cm and the width is increased by 5 cm, the result will be a square. the area of this square will be 40cm^2 greater than the area of the rectangle. Find the area of the rectangle.

Answers

Answer: 30 cm^2.

Step-by-step explanation:

Let the original length of the rectangle be l and its width be w. Then, according to the problem:

(l - 4) = (w + 5) (equation 1)

Also, the area of the square is 40 cm^2 more than the area of the rectangle. Mathematically, we can represent this as:

(l - 4 + 5)^2 = lw + 40

Simplifying the left-hand side and substituting equation 1, we get:

l^2 - 2lw + w^2 = lw + 40

l^2 - 3lw + w^2 - 40 = 0

(l - 8)(l - 5) = 0

Therefore, l = 8 or l = 5. If we substitute l = 8 into equation 1, we get:

w = (l - 4) - 5 = -1

This is not a valid solution since the width cannot be negative. Therefore, the only valid solution is l = 5, which gives:

w = (l - 4) + 5 = 6

So the area of the rectangle is:

A = lw = 5 x 6 = 30 cm^2.

Answer:

steps explanations: x - 4 = y + 5 (sides of a square)

(x - 4)(y + 5) = 40

Which gives;

(y + 5) (y + 5) = 40

y² + 10y + 25 = 40

y² + 10y + 25 - 40 = 0

y² + 10y - 15 = 0

a=1 b=10 and c=-15

Designa la arista de un cubo con la letra a:

a) ¿Cuál es la expresión del volumen del cubo?

b) ¿Cuál es el volumen de 2 cm de arista?
LES DOY TODOS MIS PUNTOS XFAS AYUDAAAAAAAAAAAAAAA​

Answers

a) The expression of volume(V) of a cube whose side length is a is, [tex]V=a^3[/tex]

b) The volume of a cube whose edge length is 2 cm, is 8 [tex]cm^3[/tex].

The volume of a cube is calculated by multiplying the length of any one side of the cube by itself twice (i.e., cubing it). In mathematical terms, the formula for the volume of a cube is:

Volume of a cube = (side length)³

The cube's volume formula is provided by: Volume equals [tex]a^3[/tex].

Where a represents how long its sides or edges are.

The fact that each of these dimensions measures exactly the same is good news for cubes. As a result, you can multiply any side's length by three. Volume is calculated as follows: volume = side * side * side. It is frequently expressed as:

[tex]V = a^3[/tex]

If the edge is 2 cm

then

the volume of cube is

[tex]2^3 = 8[/tex] cubic cm

To know more about volume

brainly.com/question/11168779

#SPJ4

My neighborhood is full of one-way streets. To drive from my house to the grocery store, I have to go 1 block south, then 1 block east, then 5 blocks north, then 2 blocks east. Each block is $\frac{1}{16}$ of a mile. How much shorter would my trip be if I could fly like a bird?

Express your answer in miles.

Answers

The trip would be shorter by $\frac{1}{4}-\frac{15}{16} = \frac{1}{16}$ of a mile  as per pythagorean theorem.

What is Pythagorean Theorem?

The Pythagorean theorem is a fundamental concept in geometry that describes the relationship between the sides of a right triangle. A right triangle is a triangle that has one angle that measures exactly 90 degrees, which is also known as a right angle.

In the given question, to find out how much shorter your trip would be if you could fly like a bird, we first need to find out the total distance of your current trip.

You go 1 block south, which is $\frac{1}{16}$ of a mile.

You then go 1 block east, which is also $\frac{1}{16}$ of a mile.

You then go 5 blocks north, which is $5\cdot\frac{1}{16} = \frac{5}{16}$ of a mile.

Finally, you go 2 blocks east, which is $2\cdot\frac{1}{16} = \frac{1}{8}$ of a mile.

So the total distance of your trip is $\frac{1}{16}+\frac{1}{16}+\frac{5}{16}+\frac{1}{8}=\frac{1}{4}$ of a mile.

If you could fly like a bird, you could go directly from your house to the grocery store, which we can assume is a straight line. Let's call the distance between your house and the grocery store "x".

Using the Pythagorean theorem, we can see that $x² = (\frac{1}{16})²+ (\frac{1}{8}+5\cdot\frac{1}{16})²$, which simplifies to $x² \frac{225}{256}$.

So the distance you would have to travel if you could fly like a bird is $\sqrt{\frac{225}{256}} = \frac{15}{16}$ of a mile.

Therefore, your trip would be shorter by

$\frac{1}{4}-\frac{15}{16} = \frac{1}{16}$ of a mile if you could fly like a bird.

To know more about pythagorean theorem, visit:

https://brainly.com/question/343682

#SPJ1

graph of 12x+6y=432 & 9x+3y=270

Answers

The line [tex]12x + 6y = 432[/tex] is represented by the red line, and the line equation [tex]9x + 3y = 270[/tex]is represented by the blue line. The point where these two lines intersect is (36,0).

What is equation?

In mathematics, an equation is an assertion that affirms the equivalence of two factors. An algebraic equation (=) separates two sides of an equation. For instance, the assertion [tex]"2x + 3 = 9"[/tex]states that the word "2x + 3" corresponds to the number "9". The goal of solution solving is to figure out which variable(s) must still be adjusted for the equations to be true. It is possible to have simple or intricate equations, recurring or complex equations, and equations with one or more components. For example, in the equations" [tex]x^2 + 2x - 3 = 0[/tex]," the variable x is lifted to the powercell. Lines are utilised in many areas of mathematics, include algebra, arithmetic, and geometry.

To plot these lines on a graph, we first need to solve for y in terms of x for each equation.

can plot these lines

[tex]12x+6y 4326y=-12x+432y = -2x+729x+3y=2703y=9x+270y=-3x+90[/tex]

[tex]|100|_ | . | . 90|_ . | . | .80|_ . | . | .70|_ . | . | .60 |___________________________________________ 0 30 60 90 120 150 180 210 240 270 300[/tex]

The line[tex]12x + 6y = 432[/tex]is represented by the red line, and the line 9x + 3y = 270 is represented by the blue line. The point where these two lines intersect is (36,0).

To know more about equation visit:

brainly.com/question/649785

#SPJ1

Probability - Li has t toy bricks. She only has red bricks and blue bricks.

Answers

Answer:

The value of t is 16

f(x) = x². What is g(x)?
-5
g(x) s
A. g(x) = -x²
B. g(x)=x²-3
C. g(x)=x²-3
D. g(x)=-3x²
f(x) = x²

Answers

Answer:

g(x)= x²-3

Step-by-step explanation:

C. g(x)=x²-3

Are the expressions -0.5(3x + 5) and
-1.5x + 2.5 equivalent? Explain why or why not.

Answers

These expression is not true .

What is a mathematical expression?

A mathematical expression is a sentence that consists of at least two numbers or variables, the expression itself, at least one arithmetic operation, and the expression itself. Any one of the following mathematical operations could be used: addition, subtraction, multiplication, or division.

                                  For instance, the expression x + y is an expression with the addition operator placed between the terms x and y. Mathematicians utilize two different sorts of expressions: algebraic and numeric. Numeric expressions only contain numbers; algebraic expressions additionally incorporate variables.

-0.5(3x + 5) and -1.5x + 2.5 equivalent.

  by distributing the 0.5  = -1.5x + 2.5

                                       = -1.5x + 2.5

                       = 0.5(3*2 + 5 )

                     = - 1.5 * 2 + 2.5

                     = - 3 - 2.5  = -3 + 2.5

                         - 5. 5  = 0.5

this is not true. these expression is not true .

Learn more about expression

brainly.com/question/14083225

#SPJ1

14,13,13. 5,16,14,15. 5,14. 5 which plot shows the distribution

Answers

The distribution 14,13,13. 5,16,14,15.5,14.5 has plotted using the box plot

To visualize the distribution of this dataset, you can create a box plot

A box plot, also known as a box-and-whisker plot, is a type of graph used to display the distribution of a dataset.  A box plot summarizes the distribution of a dataset by displaying the minimum, first quartile, median, third quartile, and maximum values, as well as any outliers.

In this box plot, the box represents the middle 50% of the data (the interquartile range), the line inside the box represents the median, and the whiskers represent the range of the data excluding outliers. The circles represent the outliers in the data.

Learn more about box plot here

brainly.com/question/3324111

#SPJ4

The given question is incomplete, the complete question is:

Plot the distribution 14,13,13. 5,16,14,15. 5,14. 5 in box plot

Other Questions
a 0.100 mole sample of ethane, c2h6, contains which of these? hint: how many atoms are present in one c2h6 molecule? ow do intracellular receptors differ from cell membrane receptors? a. They can be transcription factors. b. They lack specificity. c. They are not free to move around.d. They cannot respond to light. e. Their ligands are usually hydrophilic. fill in the blank. Whereas quantitative research methods rely on finding large patterns, case studies can offer ______. the following data represent the number of songs downloaded per month by people of various ages. a researcher wants to determine whether the age of the person downloading songs helps predict the number of songs downloaded. age 15 17 18 19 23 27 48 number of songs downloaded 34 33 38 27 21 16 6 the calculated correlation coefficient is r= -0.898. Would you say the correlation is weak, moderate, or strong? Use a triple integral to find the volume of the given solid The tetrahedronenclosed by the coordinate planes and the plane 10x y z 4 Write the recursive version of the function decimal which takes in an integer n and returns a list of its digits, the decimal representation of n. See the doctests to handle the case where n < 0. def decimal(n): """Return a list representing the decimal representation of a number. >>> decimal(55055) [5, 5, 0, 5, 5] >>> decimal(-136) ['-', 1, 3, 6] "*** YOUR CODE HERE ***" based on the data in the graph, which of the following should be used to calculate the difference in ld50 for the two different species of mice? 1. The population of California was 10,586,223 in 1950 and 23,668,562 in 1980. Assume the population grows exponentially. a) Find an exponential function that models the population, P, in terms of t, the years after 1950. b) Use your model, to predict the population of California in 2020. Find out about soil sampling. Other methods that can be used and their advantagesWhat are methods used in sampling? Evaluate the expression.|-2| |-1| Where would one likely find the deepest soil development?A) Over the oldest geological formations in an area, regardless of slopeB) On steep slopes if the price index has a value of 100 in year x, then year x must be the base year. true or false? The Ford F-150 is the best selling truck in the United States.The average gas tank for this vehicle is 23 gallons. On a longhighway trip, gas is used at a rate of about 3.2 gallons per hour.The gallons of gas g in the vehicle's tank can be modeled by theequation g(t)=23 -3.2t where t is the time (in hours).a) Identify the domain and range of the function. Then graphthe function.b) At the end of the trip there are 6.4 gallons left. How longwas the trip? Which scenario shows a value of 0. 4? select all that apply which of the following elements is the most difficult to ionize? select the correct answer below: fr h he xe At the beginning of the year, Maroon Industries bought three used machines. The machines immediately were overhauled, were installed, and started operating. Because the machines were different, each was recorded separately in the accounts. Details for Machine A are provided below.Cost of the asset $9,800Installation costs 880Renovation costs prior to use 840Repairs after production began 670PA9-1 (Algo) Part 1Required: 1. Compute the amount to be capitalized for Machine A.(left column dropdown options are accumulated depreciation, depreciation expense, installation costs, purchase price, renovation costs, repairs) The coefficient of variation is a better measure of risk than the standard deviation if the expected returns of the securities being compared differ significantly.A. TrueB. False According to Abraham Maslow, self-fulfillment (a full tapping of one's potential) is achieved through satisfaction of which of the following needs?A) esteemB) socialC) safety and securityD) self-actualizationE) fullness PLS HELP FAST 20 POINTS + BRAINLIEST and g, (2) = 3 and g( 3) = 10. Find g(f(2)) .