In this geometric sequence, what is the common ratio? 104, -52, 26, -13, ... A 2 B -2 C 1/2 D -1/2

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asked Dec 2, 2019 124k views

1 Answer

Hyperfocus · Answer 1 · 2019-12-06T07:55:31+0000

Hi there! The correct answer is D. -1/2

104 × -1/2 = -52
-52 × -1/2 = 26
26 × -1/2 = -13
...

Each time you multiply the preceding number by -1/2. Therefore the common ratio in this sequence is -1/2

In this geometric sequence, what is the common ratio? 104, -52, 26, -13, ... A 2 B -2 C 1/2 D -1/2

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