Given the explicit formula, find the 7th term. an = 2.5 + (n − 1)4
To find the 7th term, we substitute n = 7 into the formula.
a7 = 2.5 + (7 - 1) * 4
a7 = 2.5 + 6 * 4
a7 = 2.5 + 24
a7 = 26.5
Therefore, the 7th term is 26.5.
a7 = 2.5 + (7 - 1) * 4
a7 = 2.5 + 6 * 4
a7 = 2.5 + 24
a7 = 26.5
Therefore, the 7th term is 26.5.