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24-04-2020
Mathematics

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If f(x) = -x + 4 and g(x) = x^2 - 5, then g(f(3)) = ?
A) -8
B) -4
C) -3
D) 0

Respuesta :

25-04-2020

Answer:

B) -4

Step-by-step explanation:

To solve g(f(3)), we first have to solve f(3):

Since f(x) = -x +4 , f(3) = -3 + 4 = 1

Now we have to solve g(1) , since that is what f(3) left us;

Since g(x) = x^2 - 5 , g(1) = 1^2 - 5 = 1 - 5 = -4

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