Answer
7.203 inches
Work Step by Step
First arc goes 30 inches
Successive swings are 70 percent of the proceeding swing
Find 5th swing length
$a_5 = 30*.7^{5-1}$
$a_5=30*.7^4$
$a_5=30*.2401$
$a_5 = 7.203$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 11 - Review - Page 667: 28
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