The ages of people entering a pie eating contest are normally distributed with a mean of 35 years and a standard deviation of 8.2 years. What is the age of a pie eating contestant with a z-score of −2.1 ?

f(x)=2/3x-8, which give g(x) the greatest value.

step-by-step explanation:

ιт ιѕ:

125.28

нσρє ι ¢συℓρ нєℓρ

look at the picture.

1.

ef : ab = 2 : 3

gf : cb = 2 : 3

gh : cd = 2 : 3

he : da = 2 : 3

2.

∠a ≅ ∠e

∠b ≅ ∠f

∠c ≅ ∠g

∠d ≅ ∠h

3.

use pythagorean theorem:

the length of the abcd trapezoid sides:

|ab| = 3 cm

|bc| = 10 cm

|cd| = 3(3) cm = 9 cm

|da| = 8 cm

the perimeter of abcd = 3 + 10 + 9 + 8 = 30 cm

the ratio of perimeters of the tarapezoids is equal 2 : 3.

substitute:

      cross multiply

      divide both sides by 3