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iheartfood

  • 2 years ago

Which of the following sequences are geometric? A. 0.25, 0.35, 0.45, 0.55, 0.65 B. 3, 18, 108, 648, 3,888 C. 6, 1, 1/6, 1/36, 1/216 D. 1, 1/2, 1/3, 1/4, 1/5 **choose ALL that apply!! pls explain! thx :)

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  1. jim_thompson5910
    • 2 years ago
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    look at choice A divide the second term by the first term

  2. jim_thompson5910
    • 2 years ago
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    what do you get

  3. iheartfood
    • 2 years ago
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    i got 1.4

  4. iheartfood
    • 2 years ago
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    0.35/0.25=1.4

  5. jim_thompson5910
    • 2 years ago
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    now divide the third number by the second number

  6. iheartfood
    • 2 years ago
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    0.45/0.35=1.285714286

  7. jim_thompson5910
    • 2 years ago
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    is that the same as the last result

  8. iheartfood
    • 2 years ago
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    noo :/

  9. jim_thompson5910
    • 2 years ago
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    so choice A isn't geometric

  10. iheartfood
    • 2 years ago
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    kk i see...

  11. jim_thompson5910
    • 2 years ago
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    each term divided by its previous term must give you the same number everytime

  12. iheartfood
    • 2 years ago
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    B is right?? cuz its all multiplied by 6 act time?

  13. iheartfood
    • 2 years ago
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    **each not act lol

  14. jim_thompson5910
    • 2 years ago
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    yep, B is definitely geometric

  15. iheartfood
    • 2 years ago
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    kk and so is C right?? i keep getting 1.66666666667 is C also geometric?

  16. jim_thompson5910
    • 2 years ago
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    yep

  17. iheartfood
    • 2 years ago
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    kk and D is not right?? so my answers are B and C?

  18. jim_thompson5910
    • 2 years ago
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    good

  19. iheartfood
    • 2 years ago
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    great! thanks :)

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