Question

first three terms of a sequence are given. Round to the nearest thousand (if necessary) 152,149,146... Find the 30th term

Answer 1

65

Explanation:

use the following equation

aₙ=a₁+(n-1)d

Where d is the common difference

n is the term

a₁ is the first term

the common difference is -3 (149-152)

this means we have

152+(30-1)*-3

Compute this and get

65