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12 July, 00:12

The fifth term of an arithmetic sequence is 9 and the 32nd term is - 84. What is the 23rd term?

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Answers (2)
  1. 12 July, 00:25
    0
    The answer will be 53
  2. 12 July, 02:17
    0
    A+4d=9

    a+31d=-84

    -27d=93

    d = (-31/9)

    a+4 (-31/9) = 9

    a=205/9

    23rd term=a+22d

    = (205/9) + 22 (-31/9)

    =-53
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