Question

evaluate composite functions
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$f(a)=(a+2)^2$
$g(a)=5a+4$
evaluate.
$g(f(-2))=\square$
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evaluating composite functions

Explanation:

Step1: Calculate $f(-2)$

Substitute $a=-2$ into $f(a)=(a+2)^2$:
$f(-2)=(-2+2)^2=0^2=0$

Step2: Calculate $g(f(-2))$

Substitute the result $0$ into $g(a)=5a+4$:
$g(0)=5(0)+4=0+4=4$

Answer:

$4$