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24-01-2019
Mathematics

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PLEASE ONLY ANSWER IF YOU KNOW FOR SURE!!! 25 PTS PLEASE HELP. ONLY POSITIVE ANSWERS PLEASE

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backseatdog backseatdog

24-01-2019

Answer:

B) 74

Step-by-step explanation:

f(x) = 3x + 5

g(x) = -4x + 7

(fog)x = 3(-4x+7) + 5

= -12x + 21 + 5

= -12x + 26

(fog)(-4) = -12(-4) + 26 = 48 + 26 = 74

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