#### Answer

$4$

#### Work Step by Step

$\sqrt {16}=4$ because $4^2=16$
(Use the definition of square root)

Published by
Pearson

ISBN 10:
0-13417-805-X

ISBN 13:
978-0-13417-805-9

$4$

$\sqrt {16}=4$ because $4^2=16$
(Use the definition of square root)

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