What is the fifth term of the geometric sequence? 5, 15 , 45, ...

Question

asked Sep 18, 2021 144k views

2 Answers

Pageii Studio · Answer 1 · 2021-09-24T16:09:23+0000

The geometry sequence has the equation
a(n)=5(3^(n-1)) .

The 5 represents the first number of the sequence and the 3 represents the common ratio.

a(5) =
5(3^(5-1))=5(3^(4))=5(81)=405

answer: 405