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4 December, 09:28

What is the 15th term in the arithmetic sequence described by this explicit formula? an = 63 + (n - 1) (-7)

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  1. 4 December, 09:49
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    A15 = 63 + (15 - 1) (-7)

    a15 = 63 + 14 (-7)

    a15 = 63 - 98

    a15 = - 35 < = = = ur 15th term
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