#### Answer

$NM = \frac{1}{3}a+\frac{1}{2}b$

#### Work Step by Step

We can find the length of NM:
$NM = NB + BM$
$NM = (AB-AN)+BM$
$NM = (a - \frac{2}{3}a)+\frac{1}{2}b$
$NM = \frac{1}{3}a+\frac{1}{2}b$

Published by
Brooks Cole

ISBN 10:
9781285195698

ISBN 13:
978-1-28519-569-8

$NM = \frac{1}{3}a+\frac{1}{2}b$

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