Galen678 Galen678

14-07-2015
Mathematics

Answered

Given that f(x) = 2x + 1 and g(x) = −5x + 2, solve for f(g(x)) when x = 3.

A-91
B-33
C-25
D35

Verified Answer :

14-07-2015

\(f(x)=2x+1 \\ g(x)=-5x+2 \\ \\ f(g(x))=2(-5x+2)+1=-10x+4+1=-10x+5 \\ f(g(3))=-10 \times 3+5=-30+5=-25 \\ \boxed{f(g(3))=-25}\)

The answer is C.

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