175k views
1 vote
Let f(x) = 5x - 10 and g(x) = x2 - 7. Find f(g(8)).

User MaddHacker
by
7.9k points

2 Answers

2 votes

Answer:

275

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

User Fakeleft
by
7.8k points
1 vote

Answer:

275

Explanation:

g(x) = x²-7 ⇒ g(8) = 8² - 7 =57

f(x) = 5x -10 ⇒ f(g(8)) = f(57) = 5.57-10 = 275

User DomDunk
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories