A teacher is assessing the correlation between the number of hours spent studying and the average score on a science test.

The table below shows the data:
(Table In Image)

Part A: Is there any correlation between the number of hours students spent studying and the score on the science test? Justify your answer.

Part B: Write a function which best fits the data.

Part C: What does the slope and y-intercept of the plot indicate? ​

A Teacher Is Assessing The Correlation Between The Number Of Hours Spent Studying And The Average Score

Answers

Answer 1

yes there is a a correlation

f(x) = 4x + 60

slope = 4

y-intercept = 60

Answer 2

There is a correlation between the number of hours spent on studies and the score on music test.

How to explain the correlation?

As we increase the 0.5 hour on studying, then the music score increases by 2. The function which best fits the data for the correlation is y=60 + 4x

The slope and y-intercept of the plot indicate? that Y= score obtained in music test and X=number of hours spent on studying. The slope of the above equation represent the rate of increase in music score with respect to an increase in the number of hours spent on studying.

The y-intercept gives the music score when the number of hours spent on studying is zero.

Learn more about correlation on:

https://brainly.com/question/4219149

#SPJ2


Related Questions

NEED HEPP FAST MARKING PEOPLE AS BRAINLIST

Answers

Answer:

yes becasue their sides have the same length and angles

Step-by-step explanation:

Which of the following is the linear parent function?
A. F(x) = x
B. F(x) = x^2
C. F(x) = |x|
D. F(x) = 2x

Answers

Answer:

A. F(x)=x

Step-by-step explanation:

What is the slope of the line that passes through the points (-10, 8) and (−15,−7)? Write your answer in simplest form.

Answers

Slope=m= (-7-8)/ (-15-(-10))= -15/-5= 3
Slope =m=minus 7 minus8 minus 15

Help me please and thank you! try your best i will mark brainlist who is first and accurate.

Answers

Answer:

the first

Step-by-step explanation:

if it's perpendicular so is the gradient so y= -5/6 + 12

*I'm so sorry if I'm wrong


Please help :( I don’t get these what so ever!!!

Answers

can you please explain more so that I can give you the correct answer because just by showing an image does not help

Answer:

10.95 for a, b is definitely from a different problem

Step-by-step explanation:

3*3.65=10.95

if a number is tripled , it give same result as 28 is added to it find the number

Answers

Given :

If a number is tripled , it give same result as 28 is added to.

To Find :

We need to find that number.

Solution :

Let, the number is x.

Mathematical equation of the given scenario is :

3x = x + 28

3x - x - 28 = 0

2x - 28 = 0

x = 14

Therefore, the which give such result is 14.

Answer:

Answer :>

Step-by-step explanation:

Given :

If a number is tripled , it give same result as 28 is added to.

To Find :

We need to find that number.

Solution :

Let, the number is x.

Mathematical equation of the given scenario is :

3x = x + 28

3x - x - 28 = 0

2x - 28 = 0

x = 14

Therefore, the which give such result is 14.

T-T thank you  


could someone help

Answers

Answer: 3v^2w^2 + 10v^2w^3 (or the first option on the screen)
The first one is right 3v^2 w^2 +10v^2 w^3

What is the value ofx in the equation X=-45
O -75
O -27
O 27
O 75

Answers

I think there is something that you are missing because none of the options are correct.

Solve for side BA
(show your work)

Answers

Answer:

The length of AB is 25.6 mi.

Step-by-step explanation:

You have to apply Sine Rule :

[tex] \frac{AB}{ \sin(90) } = \frac{22.6}{ \sin(62) } [/tex]

[tex]AB = \frac{22.6}{ \sin(62) } \times \sin(90) [/tex]

[tex]AB = 25.6 \: mi \: \: (3s.f)[/tex]

what is the length, in centimeters, of EF

Answers

Answer:

8

Step-by-step explanation:

1. Use the Pythagorean theorem: a^2+b^2=c^2.

You are already given c (which is always the longest side of the triangle) and one of the legs, which can be either a or b.

2. Put the numbers into the equation and square them.

6^2+b^2=10^2

When you square the numbers, it becomes 36 + b^2 = 100.

3. Subtract 36 from both sides and take the square root of the difference.

b^2 = 64

[tex]\sqrt{64}[/tex] = 8

Answer: 8cm

Step-by-step explanation: Let’s use the Pythagorean Theorem! 6^2+x^2=10^2

36+x^2=100

x^2=64

X=8

Ms. Walch works as a car salesperson. She earns a monthly base salary of $ 4,000 Plus $ 500 commission for each car she sells. How many cars does Ms. Walsh need to sell in a given month to earn a total salary of $ 10,000 for that month?

Answers

Answer:

20 cars

Step-by-step explanation:

10,000 ÷ 500 = 20

Answer:

2 cars

Step-by-step explanation:

4,000 + 500 = 4,500 x 2 =10,000

thus its 2 cars

Sandra walks 13 miles in 3 hours. At what unit rate does Sandra walk?

A.13 miles
3 hours

B.3 hours
13 miles

c.3 miles
13 hours

D.13/3 miles
1 hour

Answers

Answer:

Not sure what is asking,but if it is asking for the equation. Then it is 13/3.

Step-by-step explanation:

In a music competition, a participant has to score a total of 40 points in the first four rounds combined to move on to the 5th and final round. Glen scored 4 points in the first round. He then went on to score additional points in the second, third and forth rounds. In each round he scored the identical points. Which inequality shows the number of points Glen scored.

Answers

Answer:

x ≥ 12

Step-by-step explanation:

Given that :

Total points required = 40

1st round point = 4

2nd, 3rd and 4th round points are identical

Let the point number of points = x

2nd + 3rd + 4th = 3

1st round + 3(x) ≥ 40

4 + 3x ≥ 40

3x ≥ 40 - 4

3x ≥ 36

x ≥ 12

The distance between P and T on the coordinate grid is units. (Input whole numbers only.)​

Answers

Answer:ummm do you have a picture of the question?

Step-by-step explanation:

Which function is equivalent to g (k) = -k'+ 6k-9?
a g(k) = -(k- 3)
g(k) = (-k+ 3)(k+ 3)
© g(k) =-(k+3)
O
g(k) = (-k- 3)(–k+ 3)

Answers

Answer:

I believe it’s g(k)=(-k- 3)(-k+3)

Step-by-step explanation:

The equivalent function is g(k) = -(k - 3)².

The correct option is A.

What is a quadratic function?

A polynomial function with one or more variables, where the largest exponent of the variable is two, is referred to as a quadratic function. In other terms, a "polynomial function of degree 2" is a quadratic function.

We can start by completing the square of the quadratic function g(k) = -k² + 6k - 9:

g(k) = -(k² - 6k + 9 ) = -(k - 3)²

Option A can be simplified as:

g(k) = -(k - 3)²

Compared with the completed square form of g(k), we can see that option A is equivalent to g(k).

Therefore, the answer is A. g(k) = -(k - 3)²

To learn more about the quadratic function;

https://brainly.com/question/11485644

#SPJ5

The complete question:

Which function is equivalent to g (k) = -k²+ 6k-9?

A. g(k) = -(k- 3)²

B. g(k) = (-k+ 3)(k+ 3)

C. g(k) = -(k+3)²

D. g(k) = (-k- 3)(–k+ 3)

The vertices of are F(2,1), G(4,1), and H(4,-1). The vertices of the image of the triangle after a dilation centered at (0,0) are F'(4,2), G'(8,2), and H'(8,-2). What is the scale factor of the dilation?

Answers

Answer:

The scale factor of the dilation is 2

Step-by-step explanation:

The given vertices the ΔFGH are;

F(2, 1), G(4, 1), and H(4, -1)

The lengths of the sides of the triangle ΔFGH are;

The length of segment FG = √((4 - 2)² + (1 - 1)²) = 2

The length of segment FH = √((4 - 2)² + ((-1) - 1)²) = 2·√2

The length of segment GH = √((4 - 4)² + ((-1) - 1)²) = 2

After a dilation with the center of dilation = (0, 0), to give the ΔF'G'H', we have;

The given vertices the ΔF'G'H' are F'(4, 2), G'(8, 2), H'(8, -2)

The length of segment F'G' = √((8 - 4)² + (2 - 2)²) = 4

The length of segment F'H' = √((8 - 4)² + ((-2) - 2)²) = 4·√2

The length of segment G'H' = √((8 - 8)² + ((-2) - 2)²) = 4

The length of the sides of ΔFGH = 1/2 × The length of the sides of ΔF'G'H' or the length of the sides of ΔF'G'H' = 2 × The length of the sides of ΔFGH

Therefore, the scale factor of the dilation is 2.

Stephen was disappointed in his grade on a recent statistics test. He calculated his 2-score and found that it was 0.45. What percent of students scored below Stephen's score?​

Answers

I would say 2 because it says he calculated his 2- score.

Find the missing length of the triangle.
C=_Km

Answers

U need to use the a^2+b^2=c^2. So 21^2+ 20^2=___. From there u square root your answer to find the length of the side.

Answer:

c = 29km

Step-by-step explanation:

[tex]A^{2}[/tex] + [tex]B^{2}[/tex] = [tex]C^{2}[/tex]

[tex]20^{2}[/tex] + [tex]21^{2}[/tex] = 841

[tex]\sqrt{841}[/tex] = 29

(2x+30) (3x+5) what is the value of x

Answers

Answer:6x^2+100x+150

Step-by-step explanation:

6x^2+100x+150 hope it helps

what is the formula for 1, -3, 9, -27?
arithmetic or geometric?

Answers

Answer:

The formula of the geometric sequence is a[tex]_{n}[/tex] = [tex](-3)^{n-1}[/tex]

Step-by-step explanation:

The terms of the sequence are 1, -3, 9, -27

∵ -3 ÷ 1 = -3

∵ 9 ÷ -3 = -3

∵ -27 ÷ 9 = -3

∴ There is a common ratio between each two consecutive terms

The sequence is geometric

∵ The formula of the geometric sequence is a[tex]_{n}[/tex] = a [tex]r^{n-1}[/tex], where

a is the first term r is the common ratio

∵ The first term is 1

a = 1

∵ The common ratio is -3

r = -3

→ Substitute them in the formula above

∵ a[tex]_{n}[/tex] = (1) [tex](-3)^{n-1}[/tex]

∴ a[tex]_{n}[/tex] = [tex](-3)^{n-1}[/tex]

The formula of the geometric sequence is a[tex]_{n}[/tex] = [tex](-3)^{n-1}[/tex]

Find the unit rate.
350 papers for $140

Answers

Answer:

2.5

Step-by-step explanation:

take the number of papers and divide it by cost to determine the number of papers/dollar

350/140

(kinda like a fraction, ima just simplify to make it easy to see the answer)

35/14

5/2

2 1/2

Hope This Helps

Answer:

2.5 is the answer

Step-by-step explanation:

Find the slope of a line that passes through the following
ordered pairs. Reduce to lowest terms.
(4, 6) (2,0)

Answers

Answer:

-6/6 = -1

Step-by-step explanation:

y2 - y1                       0 - 6          -6

x2 - x1                       2 - 4           6   simplify and you get -1

Which expressions are equivalent to 0.75(4h - 6)

Answers

I have no idea but good luck man

what is the answer to this?

Answers

the two triangles are not similar.

15 – 5(4c – 7) = 50 pls solve C​

Answers

Answer:

c = 0

Step-by-step explanation:

15 – 5(4c – 7) = 50

Expand.

15 - 20c + 35 = 50

Isolate 20c.

-20c = 50-15-35

Evaluate.

-20c = 0

Remove the negative sign.

-20c × (-1) = 0 × (-1)

Two negatives make a positive. Anything multiplied by 0 becomes 0.

20c = 0

Find c.

c = 0 ÷ 20

Evaluate.

c = 0

c = 7/4 is the solution to the equation 15 - 5(4c - 7)

Let's solve the equation step by step:

15 - 5(4c - 7) = 50

First, distribute the -5 to the terms inside the parentheses:

15 - 20c + 35 = 50

Combine like terms:

50 - 20c + 35 = 50

Combine the constant terms:

-20c + 85 = 50

Next, isolate the term with c by subtracting 85 from both sides of the equation:

-20c = 50 - 85

Simplify:

-20c = -35

Finally, divide both sides by -20 to solve for c:

c = (-35) / (-20)

Simplifying the division:

c = 7/4

Therefore, the solution to the equation 15 - 5(4c - 7) = 50 is c = 7/4.

Learn more about algebraic Expression here:

https://brainly.com/question/953809

#SPJ6

2) Solve the system of equations:

y=6x

4x+y=7

Answers

Answer: x= 7/10

Y= 21/5

Step-by-step explanation:

PLEASE HELP!! WILL GIVE BRAINLIEST!!!

Answers

12 cups= 3 quarts

there ya goo

PLEASE PLEASE HELP I NEED THE ANSWER SOON

Answers

9514 1404 393

Answer:

  A, C

Step-by-step explanation:

The domain is the list of x-values in the table. Choice A correctly lists the domain values.

The range is the list of y-values in the table. Choice B incorrectly describes the domain.

For x = -1, the table tells you f(x) = 6, so f(-1) = 6.

For x = 5, the table tells you f(x) = 12, so f(5) = 12, not -2.

Choices A and C are correct.

HELP ASAP PLEASE!!!!

Answers

Hii

(x-2)(x+2)/x(x+5)

=(-4-2)(-4+2)/-4(-4+5)

=(-6)(-2)/-4(1)

=12/-4

=-3

HOPE IT HELPS YOU OUT PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME PROMISE YOU TO FOLLOW BACK ON BRAINLY.IN

1 is 25% of what number

Answers

Answer:

4

Step-by-step explanation:

4 x .25 = 1

Answer:

its 4

Step-by-step explanation:

1÷4×100

=25%

(1×100)÷25

=4

Other Questions
In epoca regalitatii continua procesul de formare a poporului roman, ca rezultat al unui amestec intre .........din Latium si vecinii lor sabini si........... so do yall know this? What is the criteria used to classify mammals into groups?based on the type of food they eatbased on their appendages used for movementbased on how their embryos developbased on their type of hair You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound? a$8 per pound b$5 per pound c$35 per pound d$0.125 per pound Although the liver and the pancreas are not part of the digestive tract, they are important to the process of digestion because: a. Secretions they produce help to digest food b. They absorb nutrients into the bloodstream c. They eliminate wastes from the body d. All of the above At which type of boundary do rocks react to tectonic stress and pull away leading to the formation of new crust? Help please 43 points Write the difference and simplest form (5n-3)-(-2n+7) 100 points what is the answer please 3. Circle the smallest number.-2.5 and 1.5Plss answers Which type of fire can be put out with water?out of chemical, electrical, grease, and paper. what kind of those fires can be put out with water ? What characteristic of colonial rule led the colonists to distrust a strong central government?1-the excessive abuses of power by the British king2-the respected position of British soldiers3-the excessive ownership of the land by the Royal Legislatures4-the powerful influence of the Protestant Church Why are you able to smell things across a room or form great distances Task: Nonpermissible Values for Rational Expressions [30 points] Write a rational expression that has the nonpermissible values x=0 and x=17. Explain your reasoning using complete sentences. write c++ program from 1to 100 to find prime numbers using statement. the main idea of this section of big cats is Describe Vargas' approach to the Indians as he traveled around New Mexico. 2. Laging may naiisip na solusyon si Pilandok tuwing siya ay nasa panganib. Si Pilandok ay...a. manlilinlangc. mapagmakaawab. matalinod. maliksi (3x + 6) (5x +4)I need help I dont understand Read the following passage and answer the question.Allison loves figure skating. She practices at the local ice skating rink before school every day. She hopes to be an Olympic champion someday.Which point of view is being used in this passage?first-person point of viewsecond-person point of viewthird-person point of viewboth first- and third-person points of view are being used