Find the 60th term of the arithmetic sequence −29,−49,−69,...

Mathematics

1 answer:

Mariulka [41]4 years ago

4 0

Answer:

-1209

Step-by-step explanation:

Your sequence has first term a1 = -29 and common difference d = -20. Using these in the formula for the n-th term, we can find the 60 term.

an = a1 +d(n -1)

an = -29 -20(d -1)

a60 = -29 -20(60 -1) = -1209

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