Answer
See below
Work Step by Step
The sequence is geometric with first term $a_1=5$ and common ratio $r=3$. So, a rule for the nth term is:$$a_n=a_1r^{n-1}=5*3^{n-1}$$
The first 6 terms are: $a_1=5\\a_2=15\\a_3=45\\a_4=135\\a_5=405\\a_6=1215$
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 814: 28
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