Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 12 Sequences and Series - 12.2 Analyze Arithmetic Sequences and Series - 12.2 Exercises - Problem Solving - Page 808: 63b


271 cells

Work Step by Step

For an arithmetic series, the sum for the finite series is given by: $S_n=\dfrac{n(a_1+a_n)}{2}$ Here, $d=6$ From part (a), we have $a_n=6n$ $a_1= 6 (1)=6; a_9=6 \times 9=54$ $S_n=\dfrac{9 \times (6+54)}{2}=270$ Thus, the total sum of the cells in the rings is: $270+1=271$ cells
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After 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.