Answer
20
Work Step by Step
We first find what g(3) is equal to:
$g(3)=3^2+1=9+1=10 $
Thus, we know we want to find f(10):
f(10)=2(10)=20
Furthermore, f(g(3))=20.
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 4 - An Introduction to Functions - 4-6 Formalizing Relations and Functions - Practice and Problem-Solving Exercises - Page 273: 40
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