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10 March, 01:22

Find the 9th term of the geometric sequence 729,243,81

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Answers (2)
  1. 10 March, 02:11
    0
    Answer:1/9

    Step-by-step explanation:

    729,243,81

    First term (a) = 729

    Common ratio (r) = 243/729=1/3

    Using them formula:

    Tn=a x r^ (n-1)

    T9=729 x (1/3) ^ (9-1)

    T9=729 x (1/3) ^8

    T9=729 x 1/6561

    T9=729/6561

    T9=1/9
  2. 10 March, 03:02
    0
    Vote Me Brainliest!

    Answer:

    1/9

    Step-by-step explanation:

    Using them formula:

    Tn=a x r^ (n-1)

    T9=729 x (1/3) ^ (9-1)

    T9=729 x (1/3) ^8

    T9=729 x 1/6561

    T9=729/6561

    T9=1/9
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