rhndcrl rhndcrl

04-03-2019
Mathematics

contestada

Let f(x) =-3x-4 and g(x) =2x-6. Find (f×g)(-7)

A)-20
B)56
C)17
D)28

Respuesta :

kittenpaci1414 kittenpaci1414

04-03-2019

Answer:

56

Step-by-step explanation:

(f of g)(x)=f(g(x))

(f of g)(-7)=f(g(-7))

find g(-7) first for easier time

g(-7)=2(-7)-6=-14-6=-20

f(g(-7))=f(-20)

f(-20)=-3(-20)-4=60-4=56

(f of g)(-7)=56

hope this helps

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