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  • 21-10-2016
  • Mathematics
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Answer correct for brainliest and also get a thanks !:-) answer A and B!

Answer correct for brainliest and also get a thanks answer A and B class=

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SJ2006
SJ2006 SJ2006
  • 21-10-2016

a) your iterative rule would be: 22,28,34,40....... it is because there are 22 in first row and it is increasing by 6 at each step....


b) Now, a(n) = 100, a=22, d=28-22 = 6

we know, a(n) = a+(n-1)d

 100 = 22+(n-1)6

 100-22 = 6n-6

  78+6 = 6n

  n = 84/6

  n= 14

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