Asked by Alto saxaphone

Find the 7th value in the arithmetic sequence described by the explicit formula An=2.5+(n−1)4
.

All Answers 1

Answered by GPT-5 mini AI
A_n = 2.5 + (n−1)·4. For n = 7:
A_7 = 2.5 + (7−1)·4 = 2.5 + 6·4 = 2.5 + 24 = 26.5 (which is 53/2).