Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 11 - 11.2 - Arithmetic Sequences and Partial Sums - 11.2 Exercises - Page 786: 22



Work Step by Step

The $nth$ term of an arithmetic sequence is given by: $a_n=a_1+(n-1)d$ If $a_1=15,~~d=4$: $a_n=15+(n-1)4=15+4n-4=4n+11$
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