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Soni-kay Group Title

if the first term in geometric sequence is 7 and the third term is 63, what is ninth term?

  • 2 years ago
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  1. AriPotta Group Title
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    1701

    • 2 years ago
  2. AriPotta Group Title
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    i'm not quite sure how to explain how i got it. i pretty much just guessed. i knew i had to get from 7 to n (mystery 2nd term) to 63. so i decided to multiply 7 and 3, to get 21. and then i multiplied 21 and 3 to get 63. so, i knew i was right, and kept going to get the ninth term. oh wait. 1701 is the fifth term. :/ this is the ninth: 137781. sorry :/

    • 2 years ago
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