49.5k views
4 votes
If f(x)=-2x^3, g(x)=3x-5, and h(x)=x-1, what is f(g(h(3)))?

A)-129
B)-54
C)-53
D)-2

User Mozu
by
5.9k points

2 Answers

2 votes

Answer:

-2

Explanation:

User Pravin Kamble
by
6.3k points
1 vote
f(g(h(3)))
find h(3)
h(3)=3-1=2
now

f(g(h(3))=f(g(2))
find g(2)
g(2)=3(2)-5=6-5=1

now

f(g(h(3)))=f(g(2))=f(1)
find f(1)
f(1)=-2(1)^3
f(1)=-2(1)
f(1)=-2

answer is D
User Cheeseminer
by
6.4k points