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17 November, 09:12

What is the 12th term of the arithmetic sequence given by the explicit rule a (n) = - 39 + (n - 1) (7) ?

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  1. 17 November, 09:13
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    38

    Step-by-step explanation:

    Substitute n = 12 into the explicit rule

    a (12) = - 39 + (12 - 1) 7 = - 39 + (11 * 7) = - 39 + 77 = 38
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