Answer
See below.
Work Step by Step
It is an arithmetic sequence because the difference between consecutive terms is constant: $34.3-24.5=24.5-14.7=14.7-4.9=9.8=d$
Algebra and Trigonometry 10th Edition
by Larson, Ron
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 788: 86a
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