A teacher gathered data about the number of hours her students spent studying for a test and their resulting test grades. She found that on average, for every 30 minutes studied, the grade increased by 8 points. Which statements about this relationship are true? Check all that apply.
The data set would have a linear association.
The data set would have a nonlinear association.
The data set would have a positive correlation.
The data set would have a negative correlation.
Every student earns 16 more points for each additional hour they study.
Students that study more tend to earn better grades on the test.

Answers

Answer 1

The scenario described exhibits a linear relationship between the number of study hours and test grade as seen in the constant rate of change in grade per increase in study hours. Hence, the following statements are true ;

The data set would have a linear association.The data set would have a positive correlation.Students that study more tend to earn better grades on the test.

Since test grade tends to increase as the number of study hours increases, these shows that there is a positive relationship between the variables. Hence, students who take in more hours of study tend to have better test grade.

Learn more : https://brainly.com/question/18618957

Answer 2

Answer:

a,c,f

Step-by-step explanation:


Related Questions

will give brainliest to whoever answers with steps by step conclusion

Answers

Step-by-step explanation:

perimeter of the quadrilateral is 39

area is 64

for ease for I got approximate numbers.

Does this mean -5 over 3
or -3 over 5??? Or what does that mean??? PLEASE HELP

Answers

It probably means to divide or just a fraction

Answer:

That’s -5 over 3 ! :)

Step-by-step explanation:

The -5 is above/over the 3

3 over -5 would look like 3/-5 and the picture you are showing has -5/3.

What do these (>, ≥, <, ≤) mean

Answers

Answer:

Less Than,Less Than or Equal to,Greater Than,Greater Than or Equal to

Step-by-step explanation:

The line under plays the role of an equal sign and the others are pretty self explanatory

Answer: The first one is a greater sign, the second one is greater than or equal to, the third one is less than, and the last one is less than or equal to.

Step-by-step explanation: hope this helps

helpp me plzz i really need helppp

thanks!!!!!

Answers

Answer:

-14

Step-by-step explanation:

if x equals 3 cubed what does this problem equal 2x= If x = 33:

2x = ?

Answers

Answer:

2x = 54

Step-by-step explanation:

The given information;

x = 3^3

solve

x = 27

(beacuse 3^3 = 3 * 3 * 3 = 27

find 2x:

2x = 2 * x

x= 27

2 * 27 = 54

2x = 54

The diameter of a small grain of sand is about 0.00002 meters, which can be written as 2•10^n

Answers

Answer:

N = -5

Step-by-step explanation:

Move the decimal point right until it is right after the first significant figure.

N = 5

But wait! It's a decimal so it has to be negative.

N = -5

Answer:

N=-5

Step-by-step explanation:

I just wanted the points lol

1. There are infinite black and white dots on a plane. Prove that the distance between one black dot and one white dot is one unit.

Answers

Answer:

Between each black and white dot equals 1 unit because there are infinite dots, meaning that each dspace between the dots would equal 1 unit.

Step-by-step explanation:

Write the following number in Scientific Notation.
Explain what you did to get your answer
560,000,000,000,000,000

Answers

Answer:

5.6 * 10^17.

Step-by-step explanation:

There are 17 digits after the 5 .

So it's 5.6 * 10^17.

Note that the first number must lie between 1 and 10.

I don't really understand which number we have to write in scientifc notation but I am assuming it is the number 560,000,000,000,000,000.

Ok so, 560,000,000,000,000,000 in scientific notation is 5.6 x 10^17.

This is because if you count the number of spaces behind the decimal point of 5.6 it is equal to 17. So, you would write the answer 5.6 x 10^17.

simplify the fraction 15/45​

Answers

Answer:

1/3 or .3333333.....

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

you can divide both the numerator and the denominator by 5

15/5=3

45/5=9

then divide by 3 to both sides

hope this helps :3

if it did pls  mark brainliest

which of the following is the quotient of the rational expressions shown below​

Answers

Answer:

Step-by-step explanation:

A school sold brownies and cupcakes at a bake sale. There were 592 total items available for sale. All 286 brownies were sold. Of the cupcakes for sale, 49 did not sell. How many cupcakes did sell at the bake sale? Select the correct equation to solve. A. 592 - 286 - 49 = c B. 592 - 286 + 49 = c C. 592 + 286 - 49 = c

Answers

Answer:

A. 592 - 286 - 49 = c

Step-by-step explanation:

A school sold brownies and cupcakes at a bake sale. There were 592 total items available for sale. All 286 brownies were sold. Of the cupcakes for sale, 49 did not sell. How many cupcakes did sell at the bake sale?

Total number = 592

Total number of brownies = 286

The cup cakes for sale = 592 - 286

= 306 cupcakes.

49 of the cupcakes did not sell

The cupcakes that sold = 306 - 49

= 257 cupcakes were sold.

Therefore, the correct equation to solve. A. 592 - 286 - 49 = c

The formula to convert temperature measurements from degrees Fahrenheit (F) to degrees Celsius (C) is shown below.

C = 5/9(F - 32)

What is the Celsius equivalent of 90 degrees Fahrenheit? Round the answer to the nearest degree.

A. 16
B. 32
C. 64
D. 88

Answers

Letter B could possibly be the answer
I think it’s b
I could be wrong

You can make a solar hot-dog cooker by shaping foil-lined cardboard into a parabolic trough and passing a wire through the focus of each end piece. How far from the bottom should the wire be placed?

Answers

Answer:

The wire should be placed at a height of 2.25 inches from the bottom

Step-by-step explanation:

With the assumption that the shape of the solar hot-dog cooker is a parabola. we have the equation for the shape given as y = a·x² + b·x + c

Whereby the coordinates of the vertex is taken as (h, k) = (0, 0), we have;

c = 0

∴ y = a·x² + b·x

From the diagram, we have;

When x = 6, y = 4

When x = -6, y = 4

Which gives;

4 = a·(-6)² + b·(-6) = 36·a - 6·b

4 = 36·a - 6·b.........................................(1)

4 = a·(6)² + b·(6) = 36·a + 6·b

4 = 36·a + 6·b........................................(2)

Subtracting equation (1) from equation (2) gives;

4 - 4 = 36·a - 6·b - (36·a + 6·b) = -12·b

0 = -12·b

b = 0

Therefore;

4 = 36·a - 6×0

a = 4/36 = 1/9

The focus = F(h, k + p)

p = 1/(4·a) = 1/(4 × 1/9) = 1/(4/9) = 9/4 in = 2.25 inches

The coordinates of the focus, F = (h, k + p) = (0, 9/4) = (0, 2.25)

Therefore, the wire should pass through the focus and placed at 2.25 inches above the bottom.

What is the answer for this question please

Answers

Answer:

74

Step-by-step explanation:

92-18=74

Answer: Barry has 92 so 92 - 18 = Heidi. Heidi has 74

Step-by-step explanation:

The sides of a triangle are as follows:
AB = 10 in
BC = 14 in
AC = 8 in
Order the angles of the triangle from smallest to biggest.
<B, <A, <C
<B, <C,<A
<A, <C, <B
<A, <B, C​

Answers

Answer:

The order of the angles of Δ ABC from smallest to biggest is

∠B < ∠C < ∠A B

Step-by-step explanation:

There is a fact about a triangle

The longest side is opposite to the greatest angleThe shortest side is opposite to the smallest angle

Let us use this fact to solve our question

In Δ ABC

∵ AB = 10 inches

∵ BC = 14 inches

∵ AC = 8 inches

→ Find the longest and shortest sides

BC is the longest side

AC is the shortest side

∵ BC is opposite to ∠A

∠A is the biggest angle in measure

∵ AC is opposite to ∠B

∠B is the smallest angle in measure

The order of the angles of Δ ABC from smallest to biggest is

   ∠B < ∠C < ∠A

A fish was swimming 3 in a half feet below the water surface at 7:00 a.M. Four hours later, the fish as at a depth that is 5 one fourth feet below where it was at 7:00 a.M. What rational number represents the position of the fish with respectto water surface at 11:00 a.M

Answers

Answer:

8 3/4 below sea level

Step-by-step explanation:

Given that:

Depth of fish at 7:00 A. M = 3 1/2 feets below sea level

Depth at 11:00a.m (4 hours later) = 5 1/4 feets below it's position at 7:00 a. M

Rational number to represent position of fish with respect to the water surface at 11:00 a. M

Position at 11:00 a. M :

Addition of the two depth distances given :

(3 1/2 + 5 1/4)

7/2 + 21/4 = (14 + 21) / 4 = 35 / 4

35/4 = 8 3/4 feets below sea level

Answer:

8.75, 8 3/4 or 35/4

Step-by-step explanation:

3 1/2 + 5 1/4

=(3+5) + (1/2 + 1/4)

=8 + (2/4 + 1/4)

=8 + 3/4= 8 3/4

=8 3/4= 35/4

The slope of the line whose equation is 3 x - 2 y = 4 is:

A. 2/3

B. -2

C. 3/2

Answers

Answer:

c 3/2

Step-by-step explanation:

Write the equation or inequality and solve it.

Enrique’s company pays Salim to advertise on Salim’s website. Salim’s website earns #15 per month plus $0.05 every time a visitor clicks on the advertisement. What is the least number of clicks per month that Salim needs in order to earn $50 per month?

Write an inequality to describe this situation.

Solve the inequality and interpret the solution.
IF YOU DONT KNOW PLZ DONT ANSWER

Answers

Answer:

2000

Step-by-step explanation:

Salim will need to get 2000 clicks in order to get $50 per month or more.

First: 5 cents goes into one dollar 20 times.

Second: You multiply 20 times 50. This is how you get 2000. There is your answer.

Pls Mark Brainliest

Hi madinashakari91 how are you?

I still think you're pretty

PLEASE HELP I WILL MARK YOU BRAINLIEST

Answers

Answer:

okay so I believe the answer is 30

step-by-step explanation:

So the area is length times width and a parallelogram is Bh so all you would have to do is multiply 10 by 30

into the value of 5/6 + (-4/9)-(-2)

Answers

the answer to this is 2.38

Point P is the incenter of ΔRST. Point P is the incenter of triangle R S T. Lines are drawn from each point of the triangle to point P. Lines are drawn from point P to the sides of the triangle to form right angles and line segments P A, P B, and P C. The triangle has different angle measures. Which must be true? Line segment C P is-congruent-to line segment R P Line segment B P is-congruent-to line segment P C AnglePSC Is-congruent-to AnglePTC AngleBPS Is-congruent-to AngleAPT

Answers

Answer:

Step-by-step explanation:

The answer is the second one. Line segment B P is congruent to line segment P C

Answer:

The correct answer is B.

Step-by-step explanation:

Correct on edge 2020

Evander’s dad bought a box of 8 fruit bars for $2.10. What is the price of two fruit bars? Explain your mathematical thinking.

Answers

Answer:

0.35

Step-by-step explanation:

⚠️⚠️ What’s the slope and intercept B ⚠️⚠️
MARKING BRAINLIEST ASAP

Answers

Answer:

The slope is 1 and the y-intercept is 3.

Step-by-step explanation:

35 is what percent of 35

Answers

Answer:

100% 35/35 is 1 so 100%

Step-by-step explanation:

100% sure this is right gimme brainliest

Six cousins inherited a total of StartFraction 5 Over 8 EndFraction of their great aunt’s assets, which they divided evenly. What fraction of their great aunt’s assets did each cousin inherit?

Answers

Answer:

For us to determine the answer to this item, we simply have to divide the given fraction of the great aunt’s property that is to be divided among the cousins by 6.

    N = 5/8 / 6

The value of N in the equation is 5/48 or 0.104. Thus, each of the cousins will receive 10% of the great aunt’s property.

Answer:

5/48

Step-by-step explanation:

(5/8) / 6

If you were asked to find the total number of tiles covering a circular floor, would you look to find the area or circumference?

Answers

Answer:

The area.

Step-by-step explanation:

The circumference would only cover an outline of the floor. Hope this helps!

how do you Factor in algebra 2?

for example:
r^2-r-20
and
x^2+8x+12

Answers

(r-5)(r+4)

(x+6)(x+2)

Step-by-step explanation:

1 r^2 - 1 r - 20

multiply the first and third terms

-20 times 1 equals -20. take the -1

*what are two numbers that multiply together that equals -20 but add to equal -1?

-5 times 4 equals -20

-5 plus 4 equals -1

(r-5)(r+4)

1 x^2 + 8 x + 12

multiply the first and third terms

12 times 1 equals 12. take the 8

*what are two numbers that multiply together that equals 12 but add to equal 8?

6 times 2 equals 12

6 plus 2 equals 8

=(x+6)(x+2)

Which expression is NOT equivalent to a^3b^3
((a^2)b)((b^2)a)
(a^4)b^4−ab
((a^2b^2))/2ab
(ab)(ba)(ab)

Answers

Answer:

A. ((a^2)b)((b^2)a)

Step-by-step explanation:

A. ((a^2)b) ((b^2)a)

Open parenthesis

(a^2b)(b^2a)

a^3b^3

B. (a^4)b^4−ab

a^4b^4 - ab

C. ((a^2b^2))/2ab

(a^2b^2) / 2ab

D. (ab)(ba) (ab)

(a^2b^2)(ba)

Therefore,

a^3b^3 = ((a^2)b) ((b^2)a)

What is the slope of the line passing through the points (2, −5) and (4, 1)?



3
​54​
​−45​
2

Answers

Answer:

3

Step-by-step explanation:

The product Of (x-1) And A Rational Expression Is 1. Find The Rational Expression

Answers

Answer:

[tex]\frac{1}{x-1}[/tex]

Step-by-step explanation:

(x - 1) × [tex]\frac{1}{x-1}[/tex] ( cancel the factor (x - 1) on numerator and denominator

= 1

[ In the same way 2 × [tex]\frac{1}{2}[/tex] = 1 ]

The required rational expression is [tex]\frac{1}{x-1}[/tex]

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