mvelarde72 mvelarde72

20-08-2016
Mathematics

contestada

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

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dalendrk dalendrk

20-08-2016

f(x) = 4x + 3
the domain: Df = R

g(x) = -2x + 5
the domain: Dg = R

Df = Dg therefore (f · g)(x) = f(x) · g(x)

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

(f · g)(5) = f(5) · g(5) = 23 · (-5) = -115

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mar03riv mar03riv

18-11-2019

Answer:

You should get -17

Step-by-step explanation:

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