Answer
$49^{\frac{1}{2}}=7$
Work Step by Step
RECALL:
For any real number $a\ge 0$,
$a^{\frac{1}{2}}= \sqrt{a}$
Thus,
$49^{\frac{1}{2}}=\sqrt{49} = \sqrt{7^2} = 7$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 9 - Section 9.2 - Inverse Functions - Exercise Set - Page 551: 52
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