Use the formula for the general term (the nth term) of an arithmetic sequence to find the indicated term of the sequence with the given first term, a1, and common difference, d. Find a13 when a1 = 20, d = -3.

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Chapter12: Sequences, Series And Binomial Theorem
Section: Chapter Questions
Problem 325PT: Write the first five terms of the arithmetic sequence with the given first term and common...
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Use the formula for the general term (the nth term) of an arithmetic sequence to find the indicated term of the sequence with the given first term, a1, and common difference, d.

Find a13 when a1 = 20, d = -3.

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