All categories

2 years ago

Use the graph to find the slope (m) and y-intercept (b)

Mathematics

1 answer:

irga5000 [103]2 years ago

8 0

Answer:

Slope=4 y-intercept=(0,-21) or -21

Step-by-step explanation:

To find<u> slope</u>

m=-13-(-17)/2-1

m=4/1

m=4

To find <u>y-intercept</u>

y-(-17)=4(x-1)

y+17=4(x-1)

y+17=4x-4

Subtract both sides by 17

y=4x-21

y-intercept=-21

You might be interested in

PLEASE HELP?

Darya [45]

Answer:

1/3

Step-by-step explanation:

The number of people over 40 is 20 + 30 + 35 = 85.

So the probability is 85/255, which reduces to 1/3.

8 0

3 years ago

The area of a rug is : 42 1/4 square feet. The rug is 6 1/2feet wide. What is the length of the rug?

MissTica

Answer:

Square footage is calculated by multiplying width by length. So if a room is 9 foot wide by 12 foot long, 9 x 12 = 108 square feet.

Step-by-step explanation:

This should help!

6 0

2 years ago

What kinds of regular polygons can be used for regular tessellations? Check all that apply.

Fiesta28 [93]

Answer:

Step-by-step explanation:

The regular polygons that can be used to form a regular tessellation are an equilateral triangle, a square, and a regular hexagon.

Hope it helps

plz mark as brainliest!!!!!!

4 0

3 years ago

Read 2 more answers

When 258 college students are randomly selected and surveyed, it is found that 106 own a car. Find a 99% confidence interval for

juin [17]

Answer: 0.332 < p < 0.490

Step-by-step explanation:

We know that the confidence interval for population proportion is given by :-

$\hat{p}\pm z^*\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

, where n= sample size

$\hat{p}$ = sample proportion

z* = critical z-value.

As per given , we have

n= 258

Sample proportion of college students who own a car = $\hat{p}=\dfrac{106}{258}\approx0.411$

Critical z-value for 99% confidence interval is 2.576. (By z-table)

Therefore , the 99% confidence interval for the true proportion(p) of all college students who own a car will be : $0.411\pm (2.576)\sqrt{\dfrac{0.411(1-0.411)}{258}}\\\\=0.411\pm (2.576)\sqrt{0.00093829}\\\\= 0.411\pm (2.576)(0.0306315197142)\\\\=0.411\pm 0.0789=(0.411-0.0789,\ 0.411+0.0789)\\\\=(0.3321,\ 0.4899)\approx(0.332,\ 0.490)$

Hence, a 99% confidence interval for the true proportion of all college students who own a car : 0.332 < p < 0.490

3 0

3 years ago

Seventy-five percent of what number is 37.5?

Svetach [21]

Answer: 37.5 is 5% of 57.6923077

Step-by-step explanation:

4 0

3 years ago