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Help 2

 Mar 8, 2018
 #1
avatar+100571 
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2. 

 

cn  = 3n  - 1          replace n with  15    and we have

 

c15  =  3(15)  - 1   =   45  - 1   =  44

 

 

3.  The recursive formula  is

 

a = an-1 + 6,    a1  = 7    { This  "formula" means that are taking the previouis term and adding 6 to it to get the next term  }

 

To get the next term we have

 

31  +  6   = 37    {The first answer }

 

 

cool cool cool

 Mar 8, 2018

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