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Garfield738 Garfield738
  • 22-09-2015
  • Mathematics
Answered

Let f(x) = 4x+3 and g(x) = -2x+5


Find ( f )( g )(5)

A23
B–41
C–17
D–5

Verified Answer :

Panoyin
Panoyin Panoyin
  • 22-09-2015

f(x) = 4x + 3
g(x) = -2x + 5

(f · g)(5) = (4(5) + 3)(-2(5) + 5)
(f · g)(5) = (20 + 3)(-10 + 5)
(f · g)(5) = (23)(-5)
(f · g)(5) = -115

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