Answer:
Step-by-step explanation:
j7yu8iol9ololololol
Y varies directly as x, and y=9 when x = 27
If y varies directly as x, when x = 15, the value of y is equal to 5.
If y varies directly as x, we can express this relationship using the formula y = kx, where k is the constant of proportionality.
Given that y = 9 when x = 27, we can substitute these values into the equation:
9 = k x 27
To solve for k, we divide both sides of the equation by 27:
k = 9 / 27
k = 1/3
Now that we know the value of k, we can use it to find y for any other value of x.
Let's find y when x = 15:
y = (1/3) x 15
y = 5
Therefore, when x = 15, y is equal to 5.
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The complete question:
Y varies directly as x, and y=9 when x = 27.
Find the value of y, when x =15.
50 Points! Multiple choice geometry question. Photo attached. Thank you!
The sum of the measures of the exterior angles of a convex 21-gon is 360°.
Given,
Convex 21- gon
Polygon is a plane figure with a finite number of straight line segments.
Convex polygons are those in which none of their interior angles are greater than 180°.
Now,
The sum of exterior angles of any regular polygon is 360°.
Hence,
The sum of the measures of the exterior angles of a convex 21-gon is 360°.
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..................................................................................................................
Answer:
(-3, -2)
Step-by-step explanation:
In terms of a scatterplot, an outlier is an individual data point that lies at an unusually extreme position relative to the other data points in the scatterplot.
To determine which of the given ordered pairs would be considered an outlier for the given scatterplot, plot the ordered pairs and observe how far away they are from the line of best fit.
After plotting the ordered pairs on the scatterplot (see attachment), we can see that point (-3, -2) is farthest away from the line of best fit. The other three points are very close to the line of best fit.
Therefore, (-3, -2) would be considered an outlier comparatively to the other ordered pairs.
Answer: Your answer is (-3, -2)
Step-by-step explanation: Outlier means the one that stands out in the bunch. So when you look at the coordinates of (-3, -2) you can see it is the farthest of the bunch. If you look at the other answers you can see that they are not as far away as (-3, -2)
2 A car dealer, at a year-end clearance, reduces the price of last year's models by a certain amount. If a certain four-door model has been sold at a discounted price of Birr 51,000, with a discount of Birr 9,000, what is the percentage of discount?
The four-door model is sold at 15% discount.
Discount is the difference between list price and selling price.
List price is the original price of the product set by the seller.
Selling price is the price at which the product is actually sold.
We know that percentage of discount is:
Discount % = (Discount/ List price) * 100
where Discount= List price- Selling price
⇒ List price= Discount + Selling Price
⇒ List price = 9000 + 51000 = Birr 60,000
Calculating the discount percentage based on above mentioned results:
Discount % = (Discount/ list price)*100
⇒ (9,000/60,000)*100 = 15%
Therefore the percentage of discount for the four-door model sold at discounted price of Birr 51,000 with discount of Birr 9,000 is 15%.
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Please help with this I am struggling bad thank you all
p = speed of the plain in still air
w = speed of the wind
when going headwind, the plane is not really going "p" fast, is really going slower, is going "p - w", because the wind is subtracting speed from it, likewise, when going with the wind the plane is not going "p" fast, is really going faster, is going "p + w", because the wind is adding its speed to it.
we also know that on the way over he flew 2000 miles and on the way back he flew again the same 2000 miles back.
[tex]{\Large \begin{array}{llll} \underset{distance}{d}=\underset{rate}{r} \stackrel{time}{t} \end{array}} \\\\[-0.35em] ~\dotfill\\\\ \begin{array}{lcccl} &\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\ \cline{2-4}&\\ \textit{against the wind}&2000&p-w&10\\ \textit{with the wind}&2000&p+w&8 \end{array}\hspace{3.5em} \begin{cases} 2000=(p-w)(10)\\\\ 2000=(p+w)(8) \end{cases} \\\\[-0.35em] ~\dotfill[/tex]
[tex]\stackrel{\textit{using the 1st equation}}{2000=(p-w)10}\implies \cfrac{2000}{10}=p-2\implies 200=p-w\implies \boxed{200+w=p} \\\\\\ \stackrel{\textit{using the 2nd equation}}{2000=(p+w)8}\implies \cfrac{2000}{8}=p+w\implies 250=p+w \\\\\\ \stackrel{\textit{substituting "p" from above}}{250=(200+w)+w}\implies 250=200+2w\implies 50=2w\implies \cfrac{50}{2}=w \\\\\\ \boxed{25=w}\hspace{10em}\stackrel{ 200+(25) }{\boxed{225=p}}[/tex]
PLEASE HELP
Question 7 (5 points)
60°
a
30°
The triangle above has the following measures.
=10 yd
b=10√3 yd
Use the 30-60-90 Triangle Theorem to find the
length of the hypotenuse. Include correct units
Show all your work
SOMEONE HELP 45 POINTS!!!!!! WILL GIVE BRAINLIEST!!!!!! PLEASE
RIGHT ANSWER ONLY
If f(x) = 2x + 1 and g(x) = x − 2, find the quantity f divided by g of 7.
3
10
15
75
Answer:
3
Step-by-step explanation:
Step 1: First, we must plug in 7 for x in f(x) and g(x):
f(7) = 2(7) + 1
f(7) = 14 + 1
f(7) = 15
g(7) = 7-2
g(7) = 5
Now, we can divide f(7) by g(7)
f(7) / g(7) = 15 / 5
f(7) / g(7) = 3
Thus, the quantity of f divided by g of 7 is 3
What is 35 degree angle in standard position?
After using ruler and following the steps described below
We get the standard position of 35 degree.
The given angle is = 35 degree
To draw standard position of angle:
We proceed it to draw by ruler
So, in order to get position,
Follow the following steps:
1: Draw a straight line with your ruler.
2: Place your protractor on the line and align the base of the protractor with the line.
3: Find the 35 degree mark on the protractor and make a small mark on the line at that point.
4: Move your protractor to the mark you just made.
5: Align the base of the protractor with the line and make another small mark on the line at the 35 degree mark.
6: Draw a straight line connecting the two points you just marked.
And there you have it! A 35 degree angle drawn on paper.
And after following these steps we get the standard potion angle 35 degree.
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4. Higher Order Thinking A national TV
news show conducted an online poll to find
the nation's favorite
comedian. The
website showed
the pictures of
5 comedians and
asked visitors of the
site to vote. The news
show inferred that
the comedian with
the most votes was
the funniest comedian
in the nation.
a. Is the inference valid? Explain.
b. How could you improve the poll? Explain.
No, the inference is not valid because it excluded those who were not online and so did not see the poll.
To improve the poll, the news show could have conducted it in a more representative manner by surveying a larger sample of people from a variety of backgrounds
How to improve the poll ?The poll's results may have been influenced by various factors, including but not limited to the order in which the comedians were presented, the demographics of the respondents, and the fact that it was conducted online, possibly excluding those without internet access. Overall, the poll's representative accuracy is questionable.
To enhance the accuracy of the survey, the broadcast could have implemented a more inclusive method by polling a wider range of individuals from diverse backgrounds. An alternate method for conducting the poll would have been by personal or telephonic means, enabling individuals without internet connectivity to participate.
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Simplify (4x5y³)(-3x³y²).
O-12x85
Ox³y5
O-12x³y6
O-12x¹5,6
Answer:
-12x⁸y⁵
Step-by-step explanation:
Exponent law:
xᵃ * xᵇ = xᵃ ⁺ ᵇ
In exponent multiplication, if bases are same, add the exponents.
Multiply the co-efficient.Multiply the variable using the exponent law.(4x⁵y³) (-3x³y²) = 4*(-3) * x⁵⁺³ * y³⁺²
= -12x⁸y⁵
N
50°
AOMN~ ARPQ
Find 0.
M
Ө
0 = [?]°
<
P
70°
R
Answer:
60°
Step-by-step explanation:
In similar triangles, the corresponding angles are congruent.
∠O = R
O = 70°
In ΔOMN,
∠O + ∠M + ∠N = 180 {Angle sum property of triangle}
70 + 50 + Ф = 180
120 + Ф = 180
Subtract 120 from both sides,
Ф = 180 - 120
Ф = 60°
she uses 3 inch by 3 foot strips of nylon. She will cut 12 separate peices. What are the side lengths of each piece? Round to the nearest tenth
The solution is: 114 inches of wood, in inches, did Maya use in all.
Here, we have,
First, we must remember:
1 foot = 12 inches
Knowing that, let's solve the exercise:
• She made 5 strips, and in each one she used 14 inches of wood.
So, 5 * 14 = 70 inches
• 3 strips, each with 1 foot. So, 3 * 12 = 36 inches
• 4 strips, each with 1/6 foot. So, 4 * 2 = 8 inches
In all, she used 70 + 36 + 8 = 114 inches of wood.
Hence, The solution is: 114 inches of wood , in inches, did Maya use in all.
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complete question:
Maya cut a length of wood into strips to make 5 small picture frames. She used 4 inches of wood for each frame. For another project she cut another length of wood into 3 strips of 1 foot each and 4 strips of = foot 3 4 each. How much wood, in inches, did Maya use in all? Show your work.
Which of the following statements is true?
√9 is rational and √10 is rational.
√9 is irrational and √10 is irrational.
√9 is rational and √10 is irrational.
√9 is irrational and √10 is rational.
Answer:
[tex]\sqrt{9}[/tex] is rational and [tex]\sqrt{10}[/tex] is irrational
Step-by-step explanation:
The square root of 9 is 3 and the square root of 10 is a decimal that never stops.
The square root of 9 (√9) is rational because it results in an integer, which can be expressed as a fraction (3/1). However, the square root of 10 (√10), yields an approximate decimal that cannot be precisely expressed as a fraction, hence is an irrational number. Thus the statement √9 is rational and √10 is irrational is true.
Explanation:In Mathematics, a rational number is a number that can be expressed as a fraction where the numerator and denominator are integers and the denominator is not zero. Irrational numbers are numbers that cannot be expressed as fractions.
The square root of 9 is √9, which equals 3. This can be expressed as a fraction (3/1), so √9 is rational.
However, the square root of 10 is √10, which equals to approximately 3.16227766017. This cannot be accurately expressed as a fraction, so √10 is irrational.
Therefore, the true statement among the options provided is: √9 is rational and √10 is irrational.
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HELPPP MEEE PLEASEE WITH THIS QUESTION
The values of x and y are given as follows:
x = 18.[tex]y = 6\sqrt{10}[/tex]What is the geometric mean theorem?The geometric mean theorem states that the length of the altitude drawn from the right angle of a triangle to its hypotenuse is equal to the geometric mean of the lengths of the segments formed on the hypotenuse.
The bases for this problem are given as follows:
2 and x.
The altitude is given as follows:
6.
Hence the length x is given as follows:
2x = 6²
2x = 36
x = 18.
Applying the Pythagorean Theorem, the length y is given as follows:
y² = 18² + 6²
y² = 360
[tex]y = \sqrt{36 \times 10}[/tex]
[tex]y = 6\sqrt{10}[/tex]
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100 Points! Geometry question. Photo attached. Please show as much work as possible. Thank you!
The interior angles of the trapezium is as follows:
∠P = 80°∠L = 100°∠N = 70°∠M = 110°How to find the angle in a quadrilateral?The sum of interior angles in a quadrilateral is 360 degrees. Therefore, the diagram above is a trapezium with 4 sides.
Let's find the measure of each interior angles
2x + 2x + 20 + 2x - 10 + 3x - 10 = 360
9x = 360
divide both sides by 9
x = 360 / 9
x = 40
Therefore, each interior angles is as follows:
2x = 2(40) = 80 degrees
2x + 20 = 2(40) + 20 = 100 degrees
2x - 10 = 2(40) - 10 = 70 degrees
3x - 10 = 3(40) - 10 = 110 degrees
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Help I don’t know this answer
Answer:
15*8*10-7*8*11=584
Step-by-step explanation:
Find the inverse of the function.
f-¹(x) =
+
f(x) =
1
x - 2
X # 2
, X = 0
Answer:
The given function is:
f(x) = 1/(x - 2), x ≠ 2
0, x = 2
To find the inverse of the function, we need to solve for x in terms of f(x).
Let y = f(x)
Case 1: When y = 0
If y = 0, then x = 2 as per the definition of the function.
Case 2: When y ≠ 0
y = 1/(x - 2)
1/y = x - 2
x = 1/y + 2
So, the inverse function is:
f-¹(x) = 2, x = 0
1/(x - 2), x ≠ 0 and x ≠ 2
Step-by-step explanation:
Help Quickly! Find the slope of the line.
A. -1/3
B. -3
C. 3
D. 1/3
The radius of a circle is 14 yards. What is the circle's circumference?
Use 3.14 for .
pls help
Answer:
Circumference = 87.92 yd
Step-by-step explanation:
We know that formula for circumference (C) of a circle is
C = πd, where d is the diameter.
We know that the diameter is twice the measure of the radius, so we can find the diameter of the circle by multiplying the radius by 2:
d = 2r
d = 2 * 14
d = 28 yd
Now, we can find circumference, remembering to use 3.14 for π
C = 3.14 * 28
C = 87.92 yd
please helpppp me i can not figure this out it is an attachment
If they both start riding at the same time and ride at their current rates, the time is that A. Amy will have to wait 0.5 minute for Sebastian.
How to explain the informationLet v be the speed of Amy and Sebastian.
Option A states that Amy will have to wait 0.5 minutes for Sebastian. This implies that Sebastian is faster than Amy since he catches up to her within half a minute.
Therefore, Amy will have to wait 0.5 minute for Sebastian. This was calculated thus:
V = 3.0 - 2.5
v = 0.5
Therefore, Amy will have to wait 0.5 minute for Sebastian.
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I want to buy a house in 4 years. I need a down payment of $50,000. How much do I need to have today in order to have a down payment, if I can earn 3%?
I do not understand why the answer is a) for this equation: y'=2y+x. I assumed that the answer is c) or a), because numbers in the equation are positive, but I'm not sure this is the correct method here
The slope field for the differential equation would be D . Graph D .
What are slope fields ?A slope field provides a pictorial representation of differential equations that displays the magnitude and direction of the derivative or slope for solution curves at various points in the plane .
The length of line segments represents the magnitude, while the direction indicates the sign of the slope.
The equation given is y = 2 y + x which means that the slope is positive. This is why we can tell that Graph D has the correct slope field as it goes up for positive.
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50 Points! Multiple choice geometry question. Photo attached. Thank you!
Answer:
A.
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
hope it helps you
Determine the solutions of a 2x2 system of linear equations given the augmented matrix representation
| 1 5 0 |
| 0 0 0 |
The general format of the solution to the system of equations in this problem is given as follows:
(x, -1/5x).
How to solve the system of equations?Considering the augmented matrix for the system, the system of equations in the context of this problem is defined as follows:
x + 5y = 0.0x + 0y = 0.The second equation is true for any ordered pair (x,y), hence the system has an infinite number of solutions.
The infinite number of solutions has the format given as follows:
x + 5y = 0
5y = -x
y = -x/5.
Hence the ordered pair is:
(x, -1/5x).
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The figure below is a net for a square pyramid. What is the surface area of the square pyramid, in square inches?
Answer:
183.89
Step-by-step explanation:
S = square area + area of 4 triangles =
7.1^2 + 4*0.5*9.4*7.1 = 183.89
Answer: your answer is 266.44 square inches
Explanation: Triangles:
6.1x7.6=46.36in
Each triangle is 46.36in
46.36x4=185.44in
Rectangle:
9x9=81in
The rectangle is 81in
All together:
185.44+81=266.44in
So the square is the easiest do 4×4=16
The triangles its just Base×Height/2 in that order so 4×3=12/2=6
Mulitply 6 by 4 because there's 4 triangles and add 16 so 6×4=24+16=40
Hope this helped:)
Math
Florida's B.E.S.T. Standards: Grade 8 GG.5 Make predictions 38C
Recommendations
Submit
times
Skill plans
4) If you spin the spinner 55 times, what is the best prediction possible for the number of
times it will not land on yellow?
You have prizes to r
Answer:
Assuming that the spinner is fair (i.e., each color has an equal chance of being landed on), we can find the best prediction for the number of times the spinner will not land on yellow by using probability.
There are 6 colors on the spinner, so the probability of the spinner landing on yellow is 1/6. The probability of the spinner not landing on yellow is therefore:
1 - 1/6 = 5/6
This means that for each spin of the spinner, there is a 5/6 probability that it will not land on yellow. If we spin the spinner 55 times, we can expect the number of times it will not land on yellow to be:
55 x 5/6 = 45.83
However, since we cannot have a fractional number of spins, we need to round to the nearest whole number. The best prediction for the number of times the spinner will not land on yellow is therefore 46.
What numbers are missing from the pattern below? Enter your answer, using
a comma to separate each number.
57, 53, 49, 45, ?, ?, ?, ?, 25, 21, 17, 13
Answer here
The numbers that are missing from the pattern are 41, 37, 33, and 29
How to determine the numbers that are missing from the patternFrom the question, we have the following parameters that can be used in our computation:
57, 53, 49, 45, ?, ?, ?, ?, 25, 21, 17, 13
The above pattern is an arithmetic pattern that has the following features
First term = 57
Common difference = 4
using the above as a guide, we have the following:
Next term = 45 - 4 = 41
Next term = 41 - 4 = 37
Next term = 37 - 4 = 33
Next term = 33 - 4 = 29
Hence, the numbers that are missing from the pattern are 41, 37, 33, and 29
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A university professor and his students did a study to determine the mean length of bass in a lake. Each time a bass was caught, its length was measured in inches, and then it was released. The distribution of the lengths is shown in the graph below.
image
Based on this graph, which measurement represents the BEST estimate for the mean length of bass in the lake?
Based on this graph, a measurement which represent the best estimate for the mean length of bass in the lake include the following: 17 inches.
What is a mean?In Mathematics and Statistics, a mean is sometimes referred to as an average and it can be defined as a ratio of the sum of the total number in a data set (population) to the frequency of the data set.
Mathematically, the mean of a data set can be calculated by using the following formula:
Mean = [F(x)]/n
By critically observing the graph (histogram) shown in the image attached below, we can logically deduce that the distribution is symmetrical. This ultimately implies that, the mean length of bass in the lake would be in the middle, with an estimated value of 17 inches.
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
Complete Question:
A university professor and his students did a study to determine the mean length of bass in a lake. Each time a bass was caught, its length was measured in inches, and then it was released. The distribution of the lengths is shown in the graph below. Based on this graph, which measurement represents the best estimate for the mean length of bass in the lake?
12 inches
17 inches
20 inches
23 inches
For the three-part question that follows, provide your answer to each question in the given workspace. Identify each part with a coordinating response. Be sure to clearly label each part of
your response as Part A, Part B, and Part C.
Part A: Suppose event A and event B are mutually exclusive. Is the statement P(A and B)-0 true?
Part 9: Explain why or why not to support your answer to Part A.
Part C: Provide an example to support your explanation.
Part A :
Yes, the statement is true that P( A and B ) = 0 .
Given,
Event A and Event B are mutually exclusive.
Thus P ( A and B ) = 0
Part B:
A and B are mutually exclusive events if they do not occur at the same time.
This means that A and B do not share any common outcomes and
P(A and B) = 0.
Part C:
Let,
The sample space W = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}.
Let A = {1, 2, 3, 4, 5}, Y = {4, 5, 6, 7, 8}, and B = {7, 9}.
A and B do not have any numbers in common so P(A and B) = 0.
Hence, A and B are mutually exclusive.
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There are 15 ushers and 9 technicians helping at the Harper Middle School fall play.
The ratio of technicians to all the helpers at the Harper Middle School fall play is 9 : 24.
What is the ratio of technicians to all the helpers at the Harper Middle School fall play?The ratio of technicians to all helpers can be calculated by dividing the number of technicians by the total number of helpers.
the ratio of technicians to all helpers = number of technicians/number of helpersNumber of technicians = 9
Total number of helpers = 15 ushers + 9 technicians = 24
The ratio of technicians to all helpers = 9 / 24
The ratio will then be:
The ratio of technicians to all helpers = 9 : 24
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Complete question:
There are 15 ushers and 9 technicians helping at the Harper Middle School fall play. What is the ratio of technicians to all helpers?