Does this graph show a function? Explain how you know.

The student who consults 3 books spends 637 minutes on a research paper based on the line of best fit if the equation of the line of best fit is y = 70.28x + 425.77 option (D) is correct.

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

[tex]\rm m = \dfrac{n\sum xy-\sum x \sum y}{n\sum x^2 - (\sum x)^2}\\\\\\\rm c = \dfrac{\sum y -m \sum x}{n}[/tex]

We have:

Kevin gathered data from his classmates about the number of books they consulted and the total time they spent on a research paper.

The line of best fit is:

y  = 70.28x + 425.77

Plug x = 3 in the line of best fit:

y  = 70.28(3) + 425.77

y = 21.084 + 425.77

y = 636.61 minutes ≈ 637 minutes

Thus, the student who consults 3 books spends 637 minutes on a research paper based on the line of best fit if the equation of the line of best fit is y = 70.28x + 425.77 option (D) is correct.

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Answer: 70.

Step-by-step explanation: You have to find the common factor, what one x equals to y, you can do that by dividing 35/5 which is 7. To find y, you have to do 7x10 = 70.

Answer:

it might be 70 or 75

Step-by-step explanation:

so yea

Answer: -10

Step-by-step explanation:

1. Convert 6 1/4 to an improper fraction

25/4

2. Find the quotient using the keep, change, flip method

- Keep the first fraction (25/4)

- Change the division sign to a multiplication sign

- Flip the second fraction (i.e. find the reciprocal)

-5/8 -> -8/5

3. Multiply and solve by multiplying the numerators and denominators together respectively

25/4 * -8/5

25*-8 = -200

4*5 = 20

-200/20 = -10

Answer:

[tex]-\frac{12}{5}[/tex]

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

3(x+2) = 24 (because it’s an isosceles so both sides are equal)

x+2 = 24/3

x +2 = 8

x = 8-2

x = 6

Answer:

You put the 250-gram weight and one 50-gram weight on one side. Then you put the two 100-gram weights and two 50-gram weights on the other side. You leave the last 50-gram weight out of the equation.

Step-by-step explanation:

Feel free to give brainliest.

Have an extraordinary day!

Answer:

50

Step-by-step explanation:

becasue

Answer:

The answer for the question is E.

Answer:

4:5

Step-by-step explanation:

both sides divide by 7

Answer:

ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Step-by-step explanation:

Answer:

255 -_-

Step-by-step explanation:

230 is divisible by both

260 is divisible by both

500 is definitely divisible by both

Just use your calc

Answer:

- infinite 3 for the first one. x<3

x>2 ....2 infinite

Answer:

2x-10  by the distributive property of equality

Answer:

D is the answer

:D

Answer:

127 degrees

Step-by-step explanation:

If <1 is 53 degrees, then its vertical angle is also 53 degrees. Same side interior angles are supplementary which means they add up 180 degrees.

180 - 53 = 127

Answer:

30 Two digits prices are possible.

Step-by-step explanation:

Celine was given numbers from 1 to 6

so the possible numbers are 1, 2, 3, 4, 5, 6

And we need to make a two digit number using these digits by using them only once

Using the box method of permutation

So we will have total permutations = 6*5 = 30

Therefore 30 Two digits prices are possible.

Answer:38

Step-by-step explanation:

Answer: A quadratic equation (also called a parabola)

Step-by-step explanation:

A line can be written as:

f(x) = a*x + c

This is a polynomial with degree 1.

Now, of we have two lines:

f(x) = a*x + c

and:

g(x) = d*x + e

And we multiply them, we will get:

f(x)*g(x) = (a*x + c)*(d*x + e) = a*d*x^2 + a*e*x + c*d*x + c*e

We can rewrite this as:

                                           = (a*d)*x^2 + (a*e + c*d)*x + (c*e)

This is a polynomial of degree = 2, this is a quadratic equation, then if you multiply two lines together, you get a quadratic equation (or a parabola)

Answer:

ax^2+ bx + c

Step-by-step explanation:

I get a parabola, that is, an equation of the second degree

Answer:

y=5/2x+5

Step-by-step explanation:

y=mx+b

m=slope=rise/run=5/2

b=y-intercept=5

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Height Calculator: predict a child's adult height with significant accuracy. You can estimate how tall you will be, or the adult height of your child or a child patient. Accepts metric and imperial units: inches, feet, cm, meters. Output (mature height) is in centimeters and feet and inches.

Step-by-step explanation:

$9.99 + $0.35t <= $12

$0.35t <= $2.01

t <= 5.74

The most number of toppings would be 5.

Answer:

9.99 + 0.35t ≤ 12

5 toppings

Step-by-step explanation:

First part of question:

9.99 + 0.35t ≤ 12

"At most" means you use ≤.

Second part of question:

Take the inequality and solve for t:

9.99 + 0.35t ≤ 12

0.35t ≤ 2.01

t ≤ 5.74

So, the most number of toppings that a pizza can have and still be at most $12 is 5 toppings. You have to round down 5.74 to 5 otherwise the cost will exceed $12.

Answer:

I think that the answer would be C because you have to multiply the term at the top. This would mean you would not do C. Sorry if this is wrong. At least you have your eliminating process now. lol so doing C is out of the box, which makes C your answer.

Step-by-step explanation:

Step-by-step explanation:

(-2a² + s)(5a² - 6s)

= (-2a²)(5a²) + (-2a²)(-6s) + (s)(5a²) + (s)(-6s)

= -10a⁴ + 12a²s + 5a²s - 6s²

= -10a⁴ + 17a²s - 6s². (1st option)

The required graph is shown below that represents equation y = (3/4)x - 4.

The equation y = (3/4)x - 4 represents a linear function in slope-intercept form, where the coefficient of x is the slope of the line and the constant term (-4) is the y-intercept.

To graph the equation y = (3/4)x - 4, follow these steps:

Start by plotting the point (0, -4) on the y-axis. This is the point where the line intersects the y-axis.

Since the slope is 3/4, it means that for every 4 units moved to the right along the x-axis, the corresponding y-value moves up 3 units.

From the y-intercept (0, -4), move 4 units to the right and then 3 units up to find another point. This gives us the point (4, -1).

The two points (0, -4) and (4, -1), draw a straight line passing through both points. This line represents the graph of the equation y = (3/4)x - 4.

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Answer:

14

Step-by-step explanation:

Given that:

Cost of purchase and installation = 5323.50

Cost per window = 230.25

Cost of installation = 2100

Hence,

Total purchase cost of windows alone :

5323.50 - 2100 = 3,223.50

Therefore, the number of windows purchased is :

(Total purchase cost of windows alone / price per window)

(3,223.50 / 230.25)

= 14

Hence, 14 windows was purchased

Answer:

$490 dollars

Step-by-step explanation:

Tia takes 50 dollars for her bus fare every month for 7 months. Do 7 X 5 to get your answer which is 49 then add a zero to 49.