Find the common ratio, r, for the geometric sequence that has <math xmlns="http://www.w3.org/1998/Math/MathML"> <mstyle displaystyle="true"> <msub> <mi>a</mi> <mn>1</mn> </msub> </mstyle> </math>=100 and <math xmlns="http://www.w3.org/1998/Math/MathML"> <mstyle displaystyle="true"> <msub> <mi>a</mi> <mn>8</mn> </msub> </mstyle> </math>=

atgnybo4fq

atgnybo4fq

Answered question

2022-11-07

Find the common ratio, r, for the geometric sequence that has a 1 =100 and a 8 =

Answer & Explanation

embutiridsl

embutiridsl

Beginner2022-11-08Added 26 answers

The task is incomplete, because the term a 8 is missing, but it is possible to show the way to solve the task.
According to the n−th term formula we can write, that:
a 8 = a 1 r 7 , so
r 7 = a 8 a 1
r = a 8 a 1 7

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