Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 9 - Conic Sections, Sequences, and Series - 9.4 Geometric Sequences - 9.4 Exercises: 1


Yes $r=\frac{3}{2}$

Work Step by Step

$2, 3, 4.5, 6.75, 10.125, 15.1875, . . .$ $\frac{a_2}{a_1}=\frac{3}{2}=r$ $ra_2=4.5=a_3$ $ra_3=6.75=a_4$ and so on. The sequence is geometric with common ratio $r=\frac{3}{2}$.
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