3 years ago

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

Mathematics

1 answer:

Virty [35]3 years ago

6 0

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

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