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05-06-2018
Mathematics

contestada

f(x)=3x
g(x)=-x+1
(f×g)(7)

Respuesta :

05-06-2018

F(x) = 3x
F(7) = 21

g(x) = -x + 1
g(7) = -7 + 1 = -6

(F x g)(7) = (21) (-6) = -126

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05-06-2018

(f o g)(x) = 3(- x + 1)

= - 3x + 3

Plug in 7 to this equation
- 3(7) + 3
- 21 + 3
- 18

(f o g)(7) = - 18

Answer Link

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