All categories

3 years ago

What is the slope of (2 , -2) (0,4)

Mathematics

2 answers:

lesya [120]3 years ago

7 0

Answer:

The slope is -3

Step-by-step explanation:

$\frac{y}{x}$

You do the change in y over the change in x

$\frac{-2 - 4}{2 - 0}$

which equals

$\frac{-6}{2} = -3$

Bogdan [553]3 years ago

5 0

Answer:

-3

Step-by-step explanation:

The slope for two points is found by

m = (y2-y1)/(x2-x1)

= (4--2)/(0-2)

= (4+2)/(0-2)

= (6/-2)

=-3

You might be interested in

Suppose a random sample of 25 students is selected from a community college where the scores in the final exam (out of 125 point

BartSMP [9]

Answer:

he probability that the sample mean deviates from the population mean = 112 by no more than 4= 0.9050

Step-by-step explanation:

mean = 112

sd = 12/sqrt(25) = 2.4

z = (x - μ)/σ

z = (116 - 112)/2.4 = 1.67

Therefore,

P(X >= 116) = P(z <= (116 - 112)/2.4)

= P(z >= 1.67)

= 1 - 0.9525

= 0.0475

z = (x - μ)/σ

z1 = (108 - 112)/2.4 = -1.67

z2 = (116 - 112)/2.4 = 1.67

Therefore, we get

P(108 <= X <= 116) = P((116 - 112)/2.4) <= z <= (116 - 112)/2.4)

= P(-1.67 <= z <= 1.67) = P(z <= 1.67) - P(z <= -1.67)

= 0.9525 - 0.0475

= 0.9050

6 0

3 years ago

A right triangle has leg measures of 8 and 15 inches. What is the area and perimeter of the triangle?

rewona [7]

Hello!

<h3><em><u>Answer</u></em></h3>

The area of the right triangle is 30 $in^{2}$ . The perimeter is 40 in.

<h3><em><u>Explanation</u></em></h3>

First, we must find the measure of the hypotenuse of the triangle by using the Pythagorean Theorem.

$a^{2}$ + $b^{2} = c^{2}$

$8^{2} + 15^{2} = c^{2}$

64 + 225 = $c^{2}$

√289 = $c^{2}$

17 = $c$

Now that we have all the side lengths, we can use the formulas to find the area and perimeter.

A = $\frac{bh}{2}$

A = (15 × 8) ÷ 2

A = 30

<h3>PERIMETER:</h3>

P = a + b + c

P = 8 + 15 + 17

P = 40

8 0

3 years ago

Put the numbers in order from smallest to largest to find the the five-number summary. 14, 18,28,29,32,44,48,50,65

dem82 [27]

Answer:

smallest number :14,18,28 29,32

largest number :65,50,48,44,32

4 0

3 years ago

The labor force participation rate is the number of people in the labor force divided by the number of people in the country who

zepelin [54]

Answer:

The expected participation rate is 0.637.

The standard error is 0.04397

Step-by-step explanation:

For each working age people asked, there are only two possible outcomes. Either they are in the labor force, or they are not. This means that we can solve this problem using binomial distribution probability concepts.

Binomial probability:

Expected value for the participation rate: The expected value is the probability of a success. In this problem, a success is a working age people being in the labor force. 63.7% of them are. So $\pi = 0.637$ . This means that the expected participation rate is 0.637.