Answer
$5115$
Work Step by Step
Here, we have $a_n=5(2)^{i-1}$ and $a_1=5(2)^{1-1}=5$
Common ratio $r=2$
Now, $S_{10}=a_1(\dfrac{1-r^{10}}{1-r})$
or, $S_{10}=5 \times (\dfrac{1-2^{10}}{1-2})$
or, $S_{10}=5 \times (\dfrac{1-1024}{-1})=5115$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 12 Sequences and Series - 12.3 Analyze Geometric Sequences and Series - 12.3 Exercises - Skill Practice - Page 815: 48
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