Answer
$\dfrac{7\sqrt{13}}{13}$
Work Step by Step
Rationalizing the denominator of $
\dfrac{7}{\sqrt{13}}
$, results to
\begin{array}{l}
\dfrac{7}{\sqrt{13}}
\cdot
\dfrac{\sqrt{13}}{\sqrt{13}}
\\\\=
\dfrac{7\sqrt{13}}{13}
.\end{array}
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 7 - Review - Page 470: 156
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