Answer
The sequence is geometric.
Work Step by Step
$r=\frac{50}{200}=\frac{1}{4}$
$r=\frac{12.5}{50}=\frac{1}{4}$
$r=\frac{3.125}{12.5}=\frac{1}{4}$
There is a common ratio, $r = \frac{1}{4}$. So, the sequence is geometric.
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 - Lesson Check - Page 470: 2
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