Question

Find the 72nd term of the arithmetic sequence -27, -11, 5,

Answer 1

1109

Explanation:

an = d (n - 1) + c

an = what you're looking for

n = term position

d = the common difference, in your case, 16

c = first term of the sequence, or -27

a₇₂ = 16(72 - 1) + -27 = 1109