Question

11. Find the first, fourth, and tenth terms of the arithmetic sequence described by the given rule.

A(n)=5+(n-1)(1/6)

Answer 1

Explanation:

The first term is simply a(1), and is 5.

The fourth term is a(4), and is 5 + (1/6)(4-1), or 5 3/6 or 5 1/2.

The tenth term is a(10), and is 5 + (1/6)(10 - 1), or 5 + 3/2, or 6 1/2.