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Find the common ratio of the geometric sequence: -15, 135, -1215
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4 votes
Find the common ratio of the geometric sequence: -15, 135, -1215

User Sunny
by
8.2k points

2 Answers

4 votes

Answer:

A=7

Explanation:

a1=-19

a2=-26

a3=-33

Find the common difference ("d")

d=a2-a1

d=(-26)-(-19)

d=-7

User Faur
by
8.2k points
3 votes

Answer: (−15)(135)−1215

=−2025−1215

=−3240

Explanation:

User Cybergatto
by
7.6k points
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