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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

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

42%

step-by-step explanation:

we know,

total people = 60

total males = 25

percentage of males

= 25/60 × 100

= 25/6 × 10

= 25/3 × 5

= 125 / 3

= 41.

rounding of = 42%

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