Geometric Series Formula Quizmaster : MATHguide
Geometric Series Quizmaster: MATHguide
Review the Lesson | MATHguide homepage Updated March 3rd, 2018


Status: Waiting for your answers.

Use the first 7 terms of the following geometric series for the problem below:

5 + 12.5 + 31.25 + 78.125 + ...

What is the value of the common ratio? r =
What is the sum of the first 7 terms?
(to the nearest tenth)
S7 =