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March 27, 2017

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A geometric series with the first term 7 converges to 70. What does the common ratio equal? What does the second partial sum equal?

  • math - ,

    7/(1-r) = 70
    1/10 = 1-r
    r = 9/10

    S1 = 7
    S2 = 7 + .63 = 7.63

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