jolynne jolynne

23-01-2019
Mathematics

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Let f(x)=-3x-7 Abe g(x)=4x-5 find (f•g)(-3)

Respuesta :

jimrgrant1 jimrgrant1

23-01-2019

Answer:

272

Step-by-step explanation:

note that (f • g)(x) = f(x) × g(x) = (3x - 7)(4x - 5)

To evaluate substitute x = 3 into (3x - 7)(4x - 5)

(f • g)(- 3) = (- 9 - 7)(- 12 - 5) = - 16 × - 17 = 172

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