Answer
$440$
Work Step by Step
We need to use the formula $ S_n=\dfrac{n(a_1+a_2)}{2}$
Here, $ a_1=5$ and $ n=16$
Now, $ S_n=\dfrac{n(a_1+a_2)}{2}$
and $ S_{16}=\dfrac{16(5+50)}{2}=440$
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 - Review Exercises - Page 1124: 25
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