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15-03-2019
Mathematics

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

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jimrgrant1 jimrgrant1

15-03-2019

Answer:

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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