Question

Find the 57th term of the following arithmetic sequence.
5, 14, 23, 32,

Answer 1

509

Explanation:

formula

L = a + (n - 1)*d

Givens

n = 57

a = 5

d = 9

Solution

t = 5 + (57 - 1)*9

t = 5 + 56*9

t = 5 + 504

t = 509

t = 556