Answer
$-180$
Work Step by Step
We need to use the formula $ a_n =a_1+(n-1) d $
Here, $ a_1=200$ and $ d=-20$
Plug $ n=20$
$ a_{20}=200 +(20-1) \times (-20) $
or, $=200-380$
or, $ a_{20}=-180$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 10 - Review Exercises - Page 1124: 20
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
