Find the sum of the arithmetic sequence. 15,17,19,21,...,33

asked Apr 1, 2022 129k views

24 votes

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10 votes

Answer:

as formula says:

sum =

in our case n = 10, a1 = 15 and An = 33 so the answer will be:

sum = 10 * (33 + 15)/2 = 10 * 48 / 2 = 10 * 24 = 240

Explanation:

Pansoul answered Apr 6, 2022

6.4k points

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