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What is the explicit rule for this table?

 
 
IvyRosa
 
Reply Tue 28 Mar, 2017 05:23 am
0| 375
1| 562.5
2| 843.75
3| 1265.63
4| 1898.44
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Type: Question • Score: 0 • Views: 568 • Replies: 2
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fresco
 
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Reply Tue 28 Mar, 2017 08:30 am
@IvyRosa,
This is a geometric series of the general form
nth term=ar^(n-1)
with the first term a=375, and the common ratio r=1.5

NB the numbers to the left of the vertical line unusually imply that in this case n=o for the first term. Using that particular format the normal rule would be modified to
nth term = ar^n
where n is the number to the left of the vertical.
IvyRosa
 
  1  
Reply Wed 5 Apr, 2017 07:36 pm
@fresco,
Okay, I understand now. Thanks!
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