josh5071
josh5071
18-02-2019
Mathematics
contestada
If f(x)=x^2+x and g(x)=x-3, find f(g(7)).
Respuesta :
nguyenviethoangbm9z
nguyenviethoangbm9z
18-02-2019
Answer:
A. 20
Step-by-step explanation:
First we need find X.
x = 7 (because we see question). f(g(7))
Now we find g(x) = x - 3 => g(x) = 7 - 3
Next we find f(x) = x² + x . We have f(4)
f(4) = 4² + 4
= 20
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