Answer
78
Work Step by Step
we have $a_1=2 $ and $d=4$
Now, $a_n=a_1+(n-1)d$
Thus, $a_n=2+(n-1)d$
and $a_{20}=2+(20-1)4=2+(19)(4)=78$
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 - Mid-Chapter Check Point - Page 1077: 5
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.
