Meli1169 Meli1169

24-08-2017
Mathematics

contestada

f(x) = x − 2 and g(x) = x2 − 7x − 9. Find f(g(−1))

A. -21
B.-3
C. 3
D.21

Respuesta :

ghanami ghanami

24-08-2017

hello :
g(-1) = (-1)² -7(-1)-9 =1+7-9 = -1
f(g(−1)) = f(-1) = -1-2 = -3.....( answer : B)

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