Answer
$29$
Work Step by Step
Here, we have $a_{16}=1+(16-1)(-3-1)=-59$
and $b_{18}=3+(18-1)(8-3)=88$
Thus, $a_{16}+b_{18}=-59+88=29$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 10 - Section 10.2 - Arithmetic Sequences - Exercise Set - Page 1060: 52
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