Is an equivalent ratio proportional?

Yes

Step-by-step explanation:

If two ratios are equivalent they form a proportion. If ratios are not equivalent they do not form a proportion.

Hope This Helps :)

2 equivalent ratios set equal to each other are a proportion

Step-by-step explanation:

A proportion is a statement of equality of two ratios. When you set two ratios equal to each other, you have a proportion. Two equivalent ratios are equal, so when you set two equivalent ratios equal to each other, you have a proportion.

2 equivalent ratios set equal to each other are a proportion

15.5

step-by-step explanation:

5

∑

n = 1

substitute n = 1, 2, 3, 4, 5 and sum the terms

= + + + 2² + 2³

= 0.5 + 1 + 2 + 4 + 8

= 15.5

the expected value of the random variable : 0, 1 and 2

step-by-step explanation: