Answer
13
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, $169^{\frac{1}{2}}=\sqrt[2] 169^{1}=\sqrt 169=13$.
We know that $\sqrt 169=13$, because $13^{2}=169$.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.