Algebra 2 (1st Edition)

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

Chapter 12 Sequences and Series - Standardized Test Practice - Extended Response - Page 847: 19b

Answer

See below

Work Step by Step

The lane curve radius for the first lane is $36.5$ The lane curve radius for the second lane is $36.5+1.22=37.72$ The lane curve radius for the third lane is $36.5+(1.22 \times 2)=38.94$ The sequence is arithmetic. Hence, the formula is $a_n=36.5\times1.22(n-1)$
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