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PilotLPTM [1.2K]
3 years ago
13

Math 8th grade test help help

Mathematics
1 answer:
Rufina [12.5K]3 years ago
5 0

Answer:

D

Step-by-step explanation:

D has a repeating x value. Functions are only supposed to have one input for everyone output. ( no repeating x values)

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Paton knows she will make a selection from 36 total possible outcomes. Which statement might describe what Paton is doing? Check
Crank

Answer: All but statement 1

Step-by-step explanation:

In order to get 36 as an outcome, the numbers need to multiply together in order to get 36. In other words, a*b*c*d*....= desired outcome number. In statement 1, 3*9=27, and therefore not 36 outcomes. The rest do multiply to 36.

4 0
3 years ago
Read 2 more answers
the length of a rectangle is 6 inches more than twice it's width.If the perimeter of a rectangle is 60,find it's dimensions.​
levacccp [35]

Answer:

<h2>length = 22 inches</h2><h2>width = 8 inches</h2>

Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

where

l is the length

w is the width

From the question

Perimeter = 60 in

The statement

the length of a rectangle is 6 inches more than twice it's width is written as

l = 6 + 2w

Substitute the statement into the above formula

That's

60 = 2( 6 + 2w) + 2w

60 = 12 + 4w + 2w

6w = 60 - 12

6w = 48

Divide both sides by 6

w = 8

Substitute w = 6 into l = 6 + 2w

That's

l = 6 + 2(8)

l = 6 + 16

l = 22

The dimensions are

length = 22 inches

width = 8 inches

Hope this helps you

3 0
3 years ago
Find the volume of the triangular pyramid to the nearest whole number
Marina CMI [18]

Answer:

906 inches³

Step-by-step explanation:

The volume of a triangular pyramid = 1/3 (area of base) × h

area of the base = 1/2 × 19 × 13 = 123.5 inches²

v = 1/3 × 123.5 × 22 = 905.666... ≈ 906 inches³

The volume of the triangular pyramid is 906 inches³

Hope this helps!

8 0
3 years ago
Assume that adults have IQ scores that are normally distributed with a mean of mu equals 105 and a standard deviation sigma equa
kondor19780726 [428]

Answer:   0.6827

Step-by-step explanation:

Given : Mean IQ score : \mu=105

Standard deviation : \sigma=15

We assume that adults have IQ scores that are normally distributed .

Let x be the random variable that represents the IQ score of adults .

z-score : z=\dfrac{x-\mu}{\sigma}

For x= 90

z=\dfrac{90-105}{15}\approx-1

For x= 120

z=\dfrac{120-105}{15}\approx1

By using the standard normal distribution table , we have

The p-value : P(90

P(z

Hence,  the probability that a randomly selected adult has an IQ between 90 and 120 =0.6827

5 0
3 years ago
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Please help me I will give you bring me if it’s right
Otrada [13]

Answer:x

Step-by-step explanation:

7 0
3 years ago
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