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5 votes
The formula for the nth term b of a geometric series is b=ar^n-1. Find n when b=1,024, a=16 and r=2.

2 Answers

6 votes

Answer:

7

Explanation:

User Delon
by
6.7k points
2 votes
1024=16*2^n-1
1024/16=2^n-1
Log(1024/16)=(n-1)*log(2)
n=(log(1,024÷16)÷log(2))+1
n=7
User Tim Schaub
by
5.9k points