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15 September, 03:01

Which sequences are geometric? Check all that apply.

O 1,5, 25, 125, ...

3, 6, 9, 12, ...

3, 6, 12, 24, ...

3, 9, 81, 6, 561, ...

10, 20, 40, 60, ...

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  1. 15 September, 03:26
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    1, 5, 25, 125, ...

    3, 6, 12, 24, ...

    Step-by-step explanation:

    a geometric progression is a sequence of numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio

    1, 5, 25, 125, ...

    yes, the common ratio is 5

    3, 6, 9, 12, ...

    no

    3, 6, 12, 24, ...

    yes, the common ratio is 2

    3, 9, 81, 6, 561, ...

    no

    10, 20, 40, 60, ...

    no
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