Find the 7th value in the arithmetic sequence described by the explicit formula An=2.5+(n−1)4
.(1 point)
A7=
Using the explicit formula An = 2.5 + (n - 1)4, we can substitute n = 7 into the formula to find the 7th value in the arithmetic sequence:
A7 = 2.5 + (7 - 1)4
= 2.5 + 6(4)
= 2.5 + 24
= 26.5
Therefore, the 7th value in the arithmetic sequence is A7 = 26.5.