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anonymous

  • 5 years ago

Given the sequence 6, 18, 54, 162, ..., which expression would give the fifteenth term?.

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  1. anonymous
    • 5 years ago
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    first term is 6, second term is 3x6, third it 3^2x6, so 14th is 3^13x6

  2. anonymous
    • 5 years ago
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    \[6*3^{14}=28697814 \]

  3. anonymous
    • 5 years ago
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    oh sorry 15th term is just 3^(14)x6

  4. anonymous
    • 5 years ago
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    \[T_n=6 \times 3^{n-1} \]

  5. anonymous
    • 5 years ago
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    foolfor the nth term gets a medal

  6. anonymous
    • 5 years ago
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    Tn=ar^n-1

  7. anonymous
    • 5 years ago
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    n=position of the term r=common ratio a=value of the first term

  8. anonymous
    • 5 years ago
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    It is a geometric progression

  9. anonymous
    • 5 years ago
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    Answer is 28697814

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