Precalculus (6th Edition)

by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie

Published by Pearson

ISBN 10: 013421742X

ISBN 13: 978-0-13421-742-0

Chapter 11 - Further Topics in Algebra - Test - Page 1085: 9

Answer

$-186$

Work Step by Step

We can identify the sequence as geometric with $a_1=-6, r=2$, thus the sum is $S_{5}=(-6)\times\frac{1-2^{5}}{1-2}=-186$

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