+0  
 
+1
539
1
avatar+5250 

Write the following series in summation notation: 68+102+153+229.5

Please show with steps.
Thanks!

rarinstraw1195  Jun 22, 2017
 #1
avatar+88830 
+4

 

The common ratio between terms is 1.5

 

So  we have

 

     n = 3

68 ∑  (1.5)n     =   552.5

     n = 0

 


cool cool cool

CPhill  Jun 23, 2017

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