The given example of f(1011) = 1110 illustrates how a one-to-one function operates, in that the same bitstring is not mapped to multiple elements in the range.
For the given functions f: A -> A and g: A -> A which are one-to-one functions, the following statements are true:
f o g is onto (also known as surjective), meaning that the range of f o g is equal to the codomain of f o g. This means that for any value in the codomain, there is at least one value In the domain that will produce it when operated on by f o g.for such more questions on function operates
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Solve for X. Enter the solutions from least to greatest.
x^2+3x-4=0
Lesser x=
Greater x=
TEN POINTS!!!!
The sοlutiοns in οrder frοm least tο greatest are:
Lesser x = -4
Greater x = 1
Hοw dο yοu οrder frοm least tο greatest?Ascending οrder refers tο the arrangement οf numbers in which the smallest number cοmes befοre the largest.
Tο sοlve fοr x in the equatiοn [tex]x^2 + 3x - 4 = 0[/tex], we can use the quadratic fοrmula:
[tex]x= \frac{(-b+\sqrt{b^{2} -4ac} )}{2a} \\[/tex]
where a, b, and c are the cοefficients οf the quadratic equatiοn[tex]ax^2 + bx + c = 0.[/tex]
In this case, a = 1, b = 3, and c = -4. Substituting these values intο the quadratic fοrmula, we get:
[tex]x = (-3\± \sqrt{(3^2 - 4(1)(-4)))} / 2(1)\\\\x = (-3 \± \sqrt{(25))} / 2\\\\x = (-3 \± 5) / 2[/tex]
This gives twο pοssible sοlutiοns:
x1 = (-3 - 5) / 2 = -4
x2 = (-3 + 5) / 2 = 1
Therefοre, the sοlutiοns in οrder frοm least tο greatest are:
Lesser x = -4
Greater x = 1
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What is the nth term rule of the linear sequence below?
-5, -2, 1, 4, 7,....
T₁=
20x50x30x50 = ?
Please answer someone!!
Answer: 1500000
Step-by-step explanation:
use a calculator
Answer:
1,500,000
Step-by-step explanation:
Breaking it up into an easier problem:
20x50 = 1,000
30x50=1,500
1,000 x 1,500, aka "adding three zeros" to the end of 1,500, as 1,000 is simply 1 x 10 x 10 x 10, and each 10 has one 0 to it.
Thus, the answer is 1,500,000
Question 53 Look at the performance review below, if you know that person 6 has a perfect score, you can calculate each person's score using the graph. If you know that person 3 hasn't achieved any of their goals this year, Person 5 has an excellent personality and very good job knowledge, and Person 4 is more interested in hanging out at the water cooler than in getting work done, then who must the performance review belong to? Total number of points per employee Peson P2 Pesen3Psen 4 PeronS Person Rating Scale Category Ratings General Quality of Work 4 Very Good Good Job Knowledge Fair Communication Skills Personality Management Ability Contribution to Group Poor 4. Achievement of Goals Person5 2. Person 4 3. Person 3
Without specific details it is difficult to determine who the performance review belongs to as we do not have specific scores for each employee. So, based on the information we can define some data as below.
Define the term graph?A graph in x-y axis plot is a visual representation of functions or data points. The dependent or vertical variable represented by y-axis, while the independent or horizontal variable represented by the x-axis.
Without the specific details of the performance review or the names of the employees, I cannot provide an exact answer. However, based on the information given, we can infer the following:
Person 6 : has a perfect score.
Person 3 : not achieved any of their goals.
Person 5 : excellent personality and very good job knowledge.
Person 4: more interested in hanging out at the water cooler.
Given this information, it is difficult to determine who the performance review belongs to as we do not have specific scores for each employee. We also do not have enough information to make an informed judgment about the performance of each employee. It is possible that the review could belong to any of the employees, depending on their individual scores and performance.
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Help Please!!! Use the scatter plot below to identify the outlier.
Alexander uses cupric chloride to etch circuit boards. He recorded the room temperature, in °C, and the etching
jim
rate, in
of the cupric chloride.
min
After plotting his results, Alexander noticed that the relationship between the two variables was fairly linear, so
he used the data to calculate the following least squares regression equation for predicting the etching rate from
the room temperature:
= 2 + 5
1
-2
What is the residual if the room temperature was 25°C and the cupric chloride had an etching rate of 5
min
The residual if the room temperature was 25°C and the cupric chloride had an etching rate of 5 μm/min is equals to the -2 μm/min.
The residual for each observation in statistics is the difference between predicted values of y (dependent variable) and observed values of y. That is Residual= observed y value − predicted y.
Here, cupric chloride is used to etch circuit boards. The linear regression equation is, y = 2 + (1/5)x
where, x = temperature in °C
y = etching rate in μm/min
Observed value of etching rate of cupric chloride = 5 μm/min for 25°C
To determine the estimated or predicted value of etching rate of cupric chloride, we substite x = 25, in the above linear equation, y = 2 + (1/5)x
=> y = 2 + (1/5)× 25
=> y = 7
So, Predicted Value = 7 μm/min
Observed Value = 5 μm/min.
Residual = Observed Value - Predicted
= 5 - 7 = -2
Hence, required value is -2 μm/min.
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Complete question:
Calculating and interpreting residuals You might need: Calculator Alexander uses cupric chloride to etch circuit boards. He recorded the room temperature, in °C, and the etching rate, in μm/min of the cupric chloride. After plotting his results, Alexander noticed that the relationship between the two variables was fairly linear, so he used the data to calculate the following least squares regression equation for predicting the etching rate from the room temperature: y = 2 + 5/x, What is the residual if the room temperature was 25°C and the cupric chloride had an etching rate of 5 μm/min. ? Show Calculator
It takes 56 minutes for 7 printing machines to
produce a batch of newspapers.
a) How many minutes would it take just 1 machine?
b) How many minutes would it take 8 machines?
Answer:392
Step-by-step explanation:
a) It would take one machine 392 minutes.
b) It would take one machine 49 minutes.
Define the term proportion?Two ratios are said to be equal when a proportion is stated. When comparing two quantities, ratios are used to divide one quantity by the other.
a) Here given that, to produce a batch of newspaper 7 printing machines needed 56 minutes.
Using this relationship, we can set up a proportion:
as given, 7 printing machine needed = 56 minutes
So, 1 printing machine needed = 7 × 56 minutes = 392 minutes
Therefore, it would take one machine 392 minutes to produce the same batch of newspapers.
b) Similarly, to find out for 8 machines to produce the same batch of newspapers, we can use the same relationship:
1 printing machine needed = 392 minutes
So, 8 printing machine needed = (392 / 8) minutes = 49 minutes
Therefore, it would take one machine 49 minutes to produce the same batch of newspapers.
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which histogram most likely represents a country with a declining population growth rate?
The histogram that most likely represents a country with a declining population growth rate is one where the bars to the right (representing higher numbers of births or deaths) are lower than the bars to the left.
A declining population growth rate means that the rate at which the population is growing is decreasing, which suggests that the number of births is decreasing or the number of deaths is increasing.
In other words, the shape of the histogram would be skewed to the left, with a long tail on the left-hand side and shorter bars on the right-hand side. This shape suggests that there are fewer births or more deaths, leading to a declining population growth rate.
It is worth noting that a histogram alone may not provide enough information to make definitive conclusions about population growth rates. Other factors such as migration rates and changes in life expectancy can also affect population growth. Therefore, it is important to consider multiple sources of data and statistical methods when analyzing population trends.
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if cell phone companies screen text messages, then freedom of speech is threatened. thus, freedom of speech is not threatened, because cell phone companies do not screen text messages. which of the following correctly expresses the form of this argument? a. if c then f. b. not f. c. all c are f. d. if c then f. e. if c then f. not
The correct option that expresses the form of the given argument is "d. if c then f."Explanation:In the given argument, it is stated that if cell phone companies screen text messages, then freedom of speech is threatened.
But as cell phone companies do not screen text messages, so freedom of speech is not threatened. This is a conditional argument, and it can be expressed in the form of a hypothetical syllogism.
The hypothetical syllogism is a syllogism that has a conditional statement in its premises. It is also called a chain argument or transitive argument. The form of the hypothetical syllogism is "If A, then B. If B, then C.
Therefore, if A, then C."In the given argument, it can be expressed in the form of the hypothetical syllogism as follows:If cell phone companies screen text messages, then freedom of speech is threatened. If freedom of speech is threatened, then cell phone companies screen text messages. Therefore, if cell phone companies do not screen text messages, then freedom of speech is not threatened.This can also be represented as "if C then F."Therefore, the correct option that expresses the form of the given argument is "d. if c then f."
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PLEEASSEEE HELLP
What is m
Mark the approximate location of the point determined by the given real number on the unit circle. a) 3.2 b) 9.5 c) 50 d) 263 a) Choose the unit circle with a point determined by 3.2. OA. OB. OC. 0 D. b) Choose the unit circle with a point determined by 9.5. OA. OB. OC. OD Click to select your answer. b) Choose the unit circle with a point determined by 9.5. OA. B. OC. D. Ay c) Choose the unit circle with a point determined by 50. c) Choose the unit circle with a point determined by 50. OA. OB. OC. OD. Ау AY 09 d) Choose the unit circle with a point determined by 263. OA. B. D. Ау х
The points determined by the real numbers 3.2, 9.5, 50, and 263 are all located on the unit circle at their respective distances from the origin.
The unit circle is a circle of radius 1 centered at the origin of a coordinate system, usually the Cartesian coordinate system. In this system, a point (x,y) is determined by its real number x, where x is the horizontal distance from the origin and y is the vertical distance from the origin. For example, the point determined by the real number 3.2 is located at (3.2, 0), since 3.2 is the horizontal distance from the origin. Similarly, the point determined by the real number 9.5 is located at (9.5, 0).
The point determined by the real number 50 is located at (50, 0). Finally, the point determined by the real number 263 is located at (263, 0). The unit circle is often used in trigonometry to describe the position of points on the circle with an angle in standard position (in radians). For example, if the point determined by the real number 3.2 has an angle in standard position of 3.2 radians, then the point located at (3.2, 0) on the unit circle is the same point. Similarly, if the point determined by the real number 9.5 has an angle in standard position of 9.5 radians, then the point located at (9.5, 0) on the unit circle is the same point. The same is true for the points determined by the real numbers 50 and 263, respectively.
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What formula is used to find the side lengths?
ANSWER:
The Pythagorean theorem is used to find the hypotenuse of a triangle.
=> AC² = AB² + BC²
In squares, the length of the side can be calculated by finding the square root of the area.
What is the mass of a solid iron wrecking ball of radius 18 cm if the density of iron is 7. 8gm/cm3
The iron wrecking ball weighs roughly 191184 grams, which is equivalent to 191.184 kilograms.
To calculate the mass of the iron wrecking ball, we need to use the formula:
mass = density x volume
The density of iron is given as 7.8 g/cm3. The volume of the wrecking ball can be calculated using the formula for the volume of a sphere:
volume = (4/3) x π x radius³
Plugging in the given radius of 18 cm, we get:
volume = (4/3) x π x (18 cm)³
volume = 24488.48 cm³
Now, we can use the formula for mass:
mass = density x volume
mass = 7.8 g/cm³ x 24488.48 cm³
mass = 191183.94 g
Therefore, the mass of the iron wrecking ball is approximately 191184 g or 191.184 kg.
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Consider the function f left parenthesis x right parenthesis equals cube root of x near x equals 8. Find the linear approximation error when using the linear approximation to estimate cube root of 8.25 end root.
The linear approximation error when using the linear approximation to estimate the cube root of 8.25 is 0.0593.
When we want to find the linear approximation error, we can use the formula
Error = f(x) - L(x),
Where `f(x)` is the actual value of the function at `x`, and `L(x)` is the linear approximation of the function at `x`.
The linear approximation of a function f(x) near x=a is given by:
L(x) = f(a) + f'(a)(x-a)
In this case, we want to find the linear approximation of the function f(x) = cube root of x near x=8. To do so, we first need to find the value of f(8) and f'(8).
f(8) = cube root of 8 ⇒ 2
To find f'(8), we take the derivative of f(x) with respect to x:
f(x) = x^(1/3)
f'(x) = (1/3)x^(-2/3)
So, f'(8) = (1/3)(8)^(-2/3) ⇒ 1/12
Therefore, the linear approximation of f(x) near x=8 is:
L(x) = 2 + (1/12)(x-8)
Now, we want to use this linear approximation to estimate the value of the cube root of 8.25. To do so, we substitute x=8.25 into the linear approximation:
L(8.25) = 2 + (1/12)(8.25-8) ⇒ 2.0208
The actual value of the cube root of 8.25 is:
∛8.25 ⇒ 2.0801
So, the error in the linear approximation is:
2.0801 - 2.0208 ⇒ 0.0593
Therefore, the linear approximation error when using the linear approximation to estimate a cube root of 8.25 is approximately 0.0593.
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Your friend Frans tells you that the system of linear equations you are solving cannot have a unique solution because the reduced matrix has a row of zeros. Comment on his claim. The claim is right. The claim is wrong. Need Help?
Answer: Incorrect
Step-by-step explanation:
Your friend Frans' claim is incorrect. A row of zeros in the reduced matrix means that the corresponding equation in the system is redundant and does not provide any additional information. This does not necessarily mean that the system does not have a unique solution. In fact, a row of zeros in the reduced matrix is common when solving systems of linear equations using Gaussian elimination, and it can still lead to a unique solution or even an infinite number of solutions. Therefore, Frans' claim is wrong.
Determine what number to multiply the first equation by to form opposite terms for the x-variable.
2
5
x + 6y = -10
–2x – 2y = 40
Multiplying the first equation by
will create opposite x terms
To create opposite x terms, we need to multiply the first equation by -5.
How to choose what term to multiply the first equation?
To choose what term to multiply the first equation, we need to consider the coefficients of the variable that we want to eliminate (in this case, the x variable) in both equations. Our goal is to create opposite terms for that variable in the two equations, so that when we add or subtract the equations, that variable will be eliminated.
Determining the number to multiply the first equation by to form opposite terms for the x-variable :
In this case, the coefficient of x in the first equation is 2/5, and the coefficient of x in the second equation is -2.
To create opposite terms for x, we need to find a constant that, when multiplied by the first equation, will result in a coefficient of x that is the negative of the coefficient of x in the second equation (i.e., -2).
To do this, we can divide the coefficient of x in the second equation by the coefficient of x in the first equation, and then multiply the entire first equation by the resulting constant.
In this case, we have:
[tex](-2)/(2/5) = -5[/tex]
Multiplying the first equation by -5 gives:
[tex]-5(2/5)x + (-5)6y = -5(-10)[/tex]
which simplifies to:
[tex]-2x - 30y = 50[/tex]
Now we have two equations with opposite x terms:
[tex]-2x - 4y = 40[/tex]
[tex]-2x - 30y = 50[/tex]
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Professor Krugman's economics course, the correlation between the students' total scores prior to the final examination and their final‑examination scores is r=0.5.r=0.5. The pre‑exam totals for all students in the course have mean 280280 and standard deviation 40.40. The final‑exam scores have mean 75 and standard deviation 8.. Professor Krugman has lost Julie's final exam but knows that her total before the exam was 300.300. He decides to predict her final‑exam score from her pre‑exam total.What is the slope of the least-squares regression line of final-exam scores on pre-exam total scores in this course? Give your answer to one decimal place.
Since only 25% of the variability in y is explained, Julie's actual score could have been much higher than the predicted value.
What is Standard Deviation?The term "standard deviation" (or "") refers to a measurement of the data's dispersion from the mean. When the standard deviation is low, the data are concentrated around the mean, and when it is large, the data are widely dispersed.
(a) Slope, b = r*(sy/sx) = 0.5*(8/40) = 0.1
Intercept = y - bx = 75 - 0.1*280 = 47
The regression equation is:
y = 47 + 0.1*x
(b) Put x = 300
y = 47 + 0.1*300
y = 77
(c) r2 = 0.5*0.5 = 0.25
Since only 25% of the variability in y is explained, Julie's actual score could have been much higher than the predicted value.
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Find measure of arc EBA
Therefore, the measure of the arc of the circle is 180 degrees.
What is circle?A circle is a geometrical shape that consists of all points that are equidistant from a single fixed point called the center. It is a closed curve, which means that it has no endpoints and is continuous. The distance between any point on the circle and its center is called the radius of the circle, denoted by the letter 'r'. The diameter of the circle is the distance across the circle through the center and is twice the length of the radius, denoted by the letter 'd'. The circumference of a circle is the distance around the circle and is given by the formula C = 2πr or C = πd, where π (pi) is a mathematical constant approximately equal to 3.14159. Circles are important in mathematics and geometry because of their symmetry, and they are used in a variety of real-life applications such as wheels, clocks, and planetary orbits.
by the question.
To find the measure of the arc of a circle given certain central angles, we need to know the angle measure of the entire circle. Since a circle has 360 degrees, we can add up the given central angles and set them equal to 360 degrees to find the measure of the missing arc.
So, the measure of the missing arc is:
360 - (30 + 100 + 50 + x) = 360 - 180 = 180 degrees
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Imagine that 3 committee members arrive late. The other 5 memebers have already shaken hands. How many handshakes will there be when the 3 late members arrive?
There will be a total of 28 handshakes when the 3 late members arrive.
What is sum of n positive integers?The first n-1 positive integers are added together using the formula n(n-1)/2, where n is the total number of terms being added together.
The number of combinations or arrangements of a given collection of items may be determined using this formula, which can be obtained using the process of mathematical induction. It is often used in combinatorics and discrete mathematics. For instance, the formula was used to determine how many times a group of individuals shook hands in the scenario above. It might also be used to determine the number of pathways in a network of nodes or vertices or the number of ways to choose a portion of an object set from a bigger set in other settings.
Given that, 3 members arrive late, and 5 members are already present.
The total members are 5 + 3 = 8.
Now, using the sum of positive integer formula:
n(n-1)/2
We can determine the number of handshakes.
8(8-1)/2 = 28
Hence, there will be a total of 28 handshakes when the 3 late members arrive.
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A straw that is 15cm long leans against the inside of a glass. The diameter of a glass is
5cm, and has a height of 8cm. How far past the edge of the glass would the straw extend?
Round your answer to the nearest tenth.
The straw will extend past the edge of the glass in a straight line. To find the answer, subtract the diameter of the glass (5cm) from the length of the straw (15 cm): 15 cm - 5 cm = 10 cm. This is the distance the straw will extend past the edge of the glass. To round to the nearest tenth, round 10.0 up to 10.1. Therefore, the straw will extend past the edge of the glass 10.1 cm.
Please help, I can’t figure this out
Answer:
x=15°, ∠A=75°, ∠B=60°, ∠C=45°
Step-by-step explanation:
As we know that sum of the angle of a triangle is 180°
Therefore ∠A+∠B+∠C=180°
5x+4x+3x=180° { ∵ ∠A=5x ∠B=4x ∠C=3x }
⇒ 12x=180°
⇒ x=15°
Hence ∠A=5x=5×15°=75°
∠B=4x=4×15°=60°
and ∠C=3x=3×15°=45°
to verify your answer 75°+60°+45°=180°
from a survey involving 1,000 university students, a market research company found that 750 students owned laptops, 450 owned cars, and 350 owned cars and laptops. if a university student is selected at random, what is the (empirical) probability that
The probability that a student selected randomly owns either a laptop or a car is 85%.
Given a survey with a total of 1000 students, the following data was obtained: 750 students own laptops450 students own cars350 students own laptops and cars a university student is selected at random, what is the (empirical) probability that the student owns either a laptop or a car?
For two events A and B, the union of A and B is the probability that event A or event B occurs. It is the addition of the probabilities of each event minus the intersection of the two events. So in this case, the probability of a student owning either a laptop or a car is P(A∪B) = P(A) + P(B) - P(A∩B) where:
P(A) = probability of owning a laptop = 750/1000 = 0.75
P(B) = probability of owning a car = 450/1000 = 0.45
P(A∩B) = probability of owning both a laptop and a car = 350/1000 = 0.35
Now, substituting values into the formula:
P(A∪B) = 0.75 + 0.45 - 0.35= 0.85
Therefore, the probability that a university student selected randomly owns either a laptop or a car is 85%.
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Which expressions are equivalent to
6
�
−
18
ℎ
6g−18h6, g, minus, 18, h?
Choose 2 answers:
Choose 2 answers:
(Choice A)
(
�
−
3
)
⋅
6
(g−3)⋅6left parenthesis, g, minus, 3, right parenthesis, dot, 6
A
(
�
−
3
)
⋅
6
(g−3)⋅6left parenthesis, g, minus, 3, right parenthesis, dot, 6
(Choice B)
2
⋅
(
3
�
−
18
ℎ
)
2⋅(3g−18h)2, dot, left parenthesis, 3, g, minus, 18, h, right parenthesis
B
2
⋅
(
3
�
−
18
ℎ
)
2⋅(3g−18h)2, dot, left parenthesis, 3, g, minus, 18, h, right parenthesis
(Choice C)
3
(
2
�
−
6
ℎ
)
3(2g−6h)3, left parenthesis, 2, g, minus, 6, h, right parenthesis
C
3
(
2
�
−
6
ℎ
)
3(2g−6h)3, left parenthesis, 2, g, minus, 6, h, right parenthesis
(Choice D)
(
−
�
−
3
ℎ
)
(
−
6
)
(−g−3h)(−6)left parenthesis, minus, g, minus, 3, h, right parenthesis, left parenthesis, minus, 6, right parenthesis
D
(
−
�
−
3
ℎ
)
(
−
6
)
(−g−3h)(−6)left parenthesis, minus, g, minus, 3, h, right parenthesis, left parenthesis, minus, 6, right parenthesis
(Choice E)
−
2
×
(
−
3
�
+
9
ℎ
)
−2×(−3g+9h)minus, 2, times, left parenthesis, minus, 3, g, plus, 9, h, right parenthesis
E
−
2
×
(
−
3
�
+
9
ℎ
)
−2×(−3g+9h)
You can use the distributive property of multiplication over addition and the fact that 18 is thrice of 6.
The given expression is equivalent to
Option C) [tex]3(2g-6h)[/tex]Option E) [tex]-2\times(-3g+9h)[/tex]What are equivalent expressions?Those expressions who might look different but their simplified forms are same expressions are called equivalent expressions.
What is the distributive property of multiplication over addition?[tex]a(b+c)=a\times b+a\times c[/tex]
(remember that many times, when using letters or symbols, we hide multiplication and write two things which are multiplied, close to each other. As in [tex]2\times x=2x[/tex])
The given expression is [tex]6g-18h[/tex]
We know that we can write
[tex]6=2\times3[/tex]
[tex]18=2\times9=3\times6[/tex]
Thus,
[tex]6g-18h=6\times g-6\times 3h=6(g-3h)=-6(-g+3h)[/tex]
[tex]6g-18h=2\times 3g-2\times 9h=2(3g-9h)=-2(-3g+9h)[/tex]
[tex]6g-18h=3\times 2g-3\times 6h=3(2g-6h)=-3(-2g+9h)[/tex]
All of the above forms are obtained from the same expression without altering its value but only forms, so their simplified forms are same so they are equivalent expressions.
Thus,
The given expression is equivalent to
Option C) [tex]3(2g-6h)[/tex]Option E) [tex]-2\times(-3g+9h)[/tex]Learn more about equivalent expressions here:
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Answer:C & D
Step-by-step explanation:
11. Figure EFGH is a parallelogram. Find the length of Line FG.
The length of Line FG is 13.5 inch
Define the term parallelogram?A parallelogram is a four-sided, geometric form in two dimensions. It is a quadrilateral, which means it has four vertices (corners) and four angles.
Area of parallelogram = base × height
As per given diagram, base, GH = 9inch and height, FP = 12inch
So, Area of parallelogram = 9 × 12 = 108 inch²
and also, Area of parallelogram = EQ × FG
put values here, 108 = 8 × FG
FG = 13.5 inch
Therefore, the length of Line FG is 13.5 inch
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if a data line on a graph slopes down as it goes to the right, it is depicting that group of answer choices the relationship between the variables on
When a data line on a graph slopes down as it goes to the right, it is depicting that the relationship between the variables on the graph is inverse.
An inverse relationship is a kind of correlation between two variables, in which one variable decreases while the other increases, or vice versa. An inverse relationship happens when one variable increases while the other decreases, or when one variable decreases while the other increases.
On a graph, when a data line slopes down as it goes to the right, this is an indication that the relationship between the variables on the graph is inverse. As the values of x increase, the values of y decrease. Therefore, we can conclude that there is an inverse relationship between x and y.
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in a lottery daily game, a player picks three numbers from 0 to 9 (without repetition). how many different choices does the player have a) if order matters? b) if order does not matter? 84
There are 720 different choices if order matters and there are 120 different choices if order does not matter.
Calculating the number of different choicesa) If order matters,
The player can choose the first number in 10 ways (any of the digits 0-9), the second number in 9 ways (since one digit has already been chosen), and the third number in 8 ways (since two digits have already been chosen).
So the total number of choices is:
10 x 9 x 8 = 720
Therefore, there are 720 different choices if order matters.
b) If order does not matter,
We need to divide the number of choices by the number of ways the three numbers can be arranged.
Since there are 3 numbers, they can be arranged in 3! = 6 ways.
So the number of choices when order does not matter is:
(10 x 9 x 8) / 6 = 120
Therefore, there are 120 different choices if order does not matter.
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the graph of the sales of a new product at a candy store, where x is time in months and y is number sold in hundreds, goes through the points (4, 2) and (6, 8). what is the rate of change, in candies sold per month?
The rate of change in candies sold per month is 3 hundred candies.
What is the Rate of change?The momentum of a variable is conveyed by the rate of change, which is used for expressing the percentage change in value over a particular amount of time.
To find the rate of change in candies sold per month, it is necessary to find the slope of the line connecting the two points.
The slope formula is given by: Δ[tex]\frac{y}{x}[/tex][tex]\frac{y2-y1}{x2-x1}[/tex]
Using the coordinates of the points, [tex]\frac{8-2}{6-4} =\frac{6}{2} =3[/tex]
The slope is 3. This means that for every month, the store sells 300 more candies.
Therefore, the rate of change, in candies sold per month is 300.
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A skating rink charges a group rate of $9 plus a fee to rent each pair of skates. A family rents 7 pairs of skates and pays a total of $30. Draw a tape diagram
Answer:
X = 3
Step-by-step explanation:
I can't really draw the diagram for you.
$9 is always charged so just add that to the end of your equation.
x is what they charge for skates and their are 7 skates so 7x
$30 is the total
7x + 9 = 30
subtract 9 from both sides
7x = 21
divide by 7 on both sides
x = 3
What is the measure of arc AC? PLS help
Luis can drive 4 times fast as Rico can ride his bicycle. If it takes Rico 3 hours longer than Luis to travel 24 miles, how fast can Rico ride his bike
The Rico ride his bike at a speed of 6 miles per hour.
Define the term speed?Speed is a measure of how quickly an object moves, calculated as the distance traveled per unit of time.
Let's take Rico's speed on his bicycle is 'r'.
So, Luis's speed can be expressed as 4r.
Time = Distance / Speed
For Luis, the time it takes to travel 24 miles is:
Time = 24miles / 4r
For Rico, the time it takes to travel 24miles is:
Time = 24miles / r
Since Rico takes 3 hours longer than Luis to travel the same distance (24miles), we can set up an equation:
24miles / r = (24miles / 4r) + 3hour
Simplifying this equation, we get:
⇒ 24 = 6 + 3r
⇒ r = 6
Therefore, Rico can ride his bike at a speed of 6 miles per hour.
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