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Math Help - Geometric Sequence

  1. #1
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    Geometric Sequence

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    A student plants a seed. After the seed sprouts, the student monitors the growth of the plant by measuring its height every week. The height after each of the first three weeks was 7mm,20mm,33mm, respectively. If this pattern of growth continues, in what week will the plant be more than 100mm tall?
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  2. #2
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    Re: Geometric Sequence

    Are you sure this is Geometric?

    7, 20 (7+13), 33 (20+13), x (33+13), and so on.
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  3. #3
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    Re: Geometric Sequence

    Sorry, i meant arithmetic!!
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  4. #4
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    Re: Geometric Sequence

    Quote Originally Posted by pickslides View Post
    Are you sure this is Geometric?

    7, 20 (7+13), 33 (20+13), x (33+13), and so on.
    Seems Arithmetic to me too
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