#### Answer

11

#### Work Step by Step

As shown on page 445, we know that $a^{\frac{m}{n}}=\sqrt[n] a^{m}=(\sqrt[n] a)^{m}$.
Therefore, $121^{\frac{1}{2}}=\sqrt[2] 121^{1}=\sqrt 121=11$.
We know that $\sqrt 121=11$, because $11^{2}=121$.

Published by
Pearson

ISBN 10:
0321969359

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

11

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