anonymous
  • anonymous
how do i find the nth term of an arithmetic sequence?
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Rizags
  • Rizags
\[\huge a_n=a_1+(n-1)d\]
welshfella
  • welshfella
a1 is the first term in the sequence and d is the common difference an example of the sequence is 2 , 5 , 8 , 11, 14 here a1 = 2 and d = common differnce between each term = 5 - 2 = 3
anonymous
  • anonymous
what is n?

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welshfella
  • welshfella
so the nth term of this sequence i s an = 2 + (n - 1)3
welshfella
  • welshfella
n is the sequence number of the term dist, second, third etc
anonymous
  • anonymous
what if the sequence number is not given? does that mean that the answer is an equation?
welshfella
  • welshfella
so 10th term of the sequence 2,5,8,11,14 is a10 = 2 + (10-1)3 = 2 + 9*3 = 2 + 27 = 29
welshfella
  • welshfella
yes then the answer is a formula containg n.
anonymous
  • anonymous
okay i understand. thank you so much.
welshfella
  • welshfella
yw

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