Answer
(a).
Work Step by Step
In the case of (a): $H(x)=f(g(x))=f(4x)=\sqrt{25-(4x)^2}=\sqrt{25-16x^2}\ne\sqrt{25-4x^2}$,
thus the answer is (a).
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 6 - Section 6.1 - Composite Functions - 6.1 Assess Your Understanding - Page 408: 7
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