Answer
$9$
Work Step by Step
Using concepts of exponents and radicals, the given expression, $
\sqrt{81}
,$ is equivalent to
\begin{array}{l}\require{cancel}
\sqrt{(9)^2}
\\\\=
9
.\end{array}
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 10 - Exponents and Radicals - Mid-Chapter Review - Mixed Review - Page 663: 3
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