Question

I don’t know if it’s g(2(5)(3(5)^2-5-5

Answer 1

B. 135

Explanation:

For ...

• f(x) = 3x^2 -x
• g(x) = 2x -5

f(5) = 3·5^2 -5

= 3·25 -5 = 75 -5 = 70

Then g(f(5)) is ...

g(f(5)) = g(70) = 2·70 -5 = 140 -5

g(f(5)) = 135 . . . . . matches choice B