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the prison population in 1990 was 745

Step-by-step explanation:

The polynomial equation representing the number of prisoners held at the federal and state prisons since 1990 is expressed as

- 2.07x² - 78.39x + 745

If x represent the number of years since 1990, then

In 1990, x = 0 year

In 1991, x = 1 year

In 1992, x = 2 years

It continues in that sequence.

Therefore, the prison population in 1990 would be

- 2.07(0)² - 78.39(0) + 745

= 0 - 0 + 745 = 745

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

b

step-by-step explanation:

it have 5 sides and 5 identicle angle.the rest does not have the same property as b.

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