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Help #1 

NotSoSmart  Mar 9, 2018
 #1
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1.  Definitely geometric....the common ratio  is 2

We can see this because

12/ 6   =  24 / 12  = 48/ 24   =  2  {the ratio of each successive term to the prior one is the same }

 

 

 

2. Fifth term of the geometric  sequence.....the common ratio is 3

 

So...the fith term  is  just.....  5 * (3)5-1   =  5 * 34  =   5 * 81   =  405

 

 

cool cool cool

CPhill  Mar 9, 2018

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