Answer:
275
Step-by-step explanation:
g(x) = x²-7 ⇒ g(8) = 8² - 7 =57
f(x) = 5x -10 ⇒ f(g(8)) = f(57) = 5.57-10 = 275
Answer:
275
Step-by-step explanation:
First, find g(8).
g(x) = x^2 - 7
g(8) = 8^2 - 7
g(8) = 64 - 7
g(8) = 57
Now find f(g(8)).
f(x) = 5x - 20
f(g(8)) = f(57)
f(57) = 5(57) - 10
f(57) = 285 - 10
f(57) = 275
Answer: f(g(8)) = 275
