Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 10 - Review Exercises - Page 1124: 21

Answer

$-92$

Work Step by Step

We need to use the formula $ a_n =a_1+(n-1) d $ Here, $ a_1=3$ and $ d=-5$ Plug $ n=20$ $ a_{20}=3 +(20-1) \times (-5) $ or, $=3-95$ or, $ a_{20}=-92$
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