All categories

3 years ago

Find the slope of the line: (8,-2) and (-7,4).

Mathematics

1 answer:

egoroff_w [7]3 years ago

5 0

Answer:

-2-4= -6

8-7= 1

the slope is -6 over 1 or -6

Step-by-step explanation:

You might be interested in

a store is selling uniform shirts for 18.95 each. if samuel has a coupon for 1/4 off the price, how much would he pay for the sh

balandron [24]

First take the original price and multiple by 1/4 or .25. You should get 4.73 then you subtract that from 18.95 and your answer is 14.22

5 0

3 years ago

The grade of a road is the ratio of its rise to its run and is usually given as a decimal or percent. Find the angle that this r

Andru [333]

Answer:

the angle would be 1/2 i did this problem before and got it correct

Step-by-step explanation:

3 0

3 years ago

To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine foun

QveST [7]

Answer:

We conclude that the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 31.7 milligrams

Sample mean, $\bar{x}$ = 28.5 milligrams

Sample size, n = 9

Alpha, α = 0.05

Sample standard deviation, s = 2.8 milligrams

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 31.7\text{ milligrams}\\H_A: \mu < 31.7\text{ milligrams}$

We use One-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{28.5 - 31.7}{\frac{2.8}{\sqrt{9}} } = -3.429$

Now, $t_{critical} \text{ at 0.05 level of significance, 8 degree of freedom } = -1.860$

Since,

$t_{stat} < t_{critical}$

We fail to accept the null hypothesis and accept the alternate hypothesis. We conclude that the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.

3 0

3 years ago

Anyone mind helping?

elena-s [515]

Answer:

15 x^8 y^3

Step-by-step explanation:

The area of a rectangle is given by

A = l*w where l is the length and w is the width

A = ( 5x^6 y^2) *( 3x^2 y)

= 15 x^(6+2) y^(2+1)

= 15 x^8 y^3

4 0

2 years ago

Read 2 more answers

If five notebooks cost $5.25, how much would three notebooks cost? Show your work

nignag [31]

Easy just do )5.25 +$5.25+$5.25 witch equals $15.75 YAY

6 0

3 years ago

Read 2 more answers