Write a rule for the geometric sequence with the given description: The first term is −3, and each term is 5 times the previous term. Then,

Question

Write a rule for the geometric sequence with the given description: The first term is −3, and each term is 5 times the previous term. Then, use the rule to solve for the 9th term. All work must be shown.

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Eirian 3 months 2021-07-19T16:37:41+00:00 1 Answers 0 views 0

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    2021-07-19T16:38:46+00:00

    Answer: -1171875

    Step-by-step explanation:

    From the question,

    a = first term = -3

    r = common ratio = 5

    The ninth term will be:

    = ar^8

    = -3 × 5^8

    = -3 × 390625

    = -1171875

    Therefore, the ninth term is -1171875.

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