Answer
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Work Step by Step
The starting value $a_1$ is $27$. The common ratio $r$ is $\frac{36}{27}=\frac{4}{3}$.
The recursive formula is $a_1=27; a_n=a_{n-1}.\frac{4}{3}$
The explicit formula is: $ a_n=27.(\frac{4}{3})^{n-1}$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 7 - Exponents and Exponential Functions - 7-8 Geometric Sequences - Practice and Problem-Solving Exercises - Page 472: 58
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