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romanna [79]
3 years ago
13

Let f(x) = x^2+6 and g(x) = x+8/x . Find (g•f)(-7)

Mathematics
2 answers:
iren [92.7K]3 years ago
5 0

Answer:

63/55

Step-by-step explanation:

i took the exam

BaLLatris [955]3 years ago
3 0
If:
x = - 7

We know that:
f(x) = x^2 + 6 → f(-7) = (-7)^2 + 6 = 49 + 6 = 55
g(x) =  \frac{x+8}{x} 

Soon:
(gof)(f(-7)) = \frac{x+8}{x}
(gof)(55) = \frac{55+8}{55}
\boxed{\boxed{(gof)(55) = \frac{63}{55}}}\end{array}}\qquad\quad\checkmark
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