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Select the sequences that are geometric. 18, 36, 54, 72, …

User Keneil
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1 Answer

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Answer:

Explanation:

18, 36, 54, 72, …

36/18 = 2

54/36 = 1.5

- different ratio so this is not geometric.

This sequence is arithmetic since each term is obtained by adding 18 to the previous term

User Zelenov
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