sinncere520 sinncere520

23-01-2019
Mathematics

contestada

for f(x) = 3x - 12 and g(x) = 2x^2 + 7, find f(g(-5)).

for fx 3x 12 and gx 2x2 7 find fg5 class=

Respuesta :

jimrgrant1 jimrgrant1

23-01-2019

Answer:

159

Step-by-step explanation:

To evaluate f(g(- 5)), first evaluate g(- 5) then substitute this value into f(x)

g(- 5) = 2(- 5)² + 7 = 50 + 7 = 57

f(57) = (3 × 57) - 12 = 171 - 12 = 159

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