F(x)=x+7 g(x)=4x^2-9 h(x)=-2x+1 what is the value of g(f(-2)

g(f(- 2)) = 91

Step-by-step explanation:

Evaluate f(- 2) then substitute the value obtained into g(x), that is

f(- 2) = - 2 + 7 = 5 , then

g(5) = 4(5)² - 9 = 4(25) - 9 = 100 - 9 = 91

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation: