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What is the common ratio of the sequence -2, 6, -18, 54,..

User Gcb
by
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2 Answers

4 votes

Answer:

-3

Explanation:

-2(-3)=6

6(-3)=-18

etc...

User Ibrewster
by
7.9k points
2 votes

Answer:

-3

Explanation:

To find the common ratio

Take the second term and divide by the first

6/-2 = -3

Check by taking the third term and dividing by the second

-18/6 = -3

And the fourth and dividing by the third

64/-18 = -3

The common ratio is -3

User Javier Hertfelder
by
8.3k points

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