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March 25, 2017

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Find the common ratio r and the value of A1 with the information given.

1. A3=324 A7=64

2. A4=32/3 A8=54

  • Help! Algebra - ,

    A7/A3 = r^4 = 16/81, so r = 2/3

    A8/A4 = r^4 = 54*3/32 = 81/16 = 3/2

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