#### Answer

E. -4

#### Work Step by Step

We know that $\sqrt 16=4$, because $4^{2}=4\times4=16$.
Therefore, $-\sqrt 16=-(4)=-4$.

Published by
Pearson

ISBN 10:
0321969359

ISBN 13:
978-0-32196-935-4

E. -4

We know that $\sqrt 16=4$, because $4^{2}=4\times4=16$.
Therefore, $-\sqrt 16=-(4)=-4$.

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