akayla25 akayla25
  • 09-11-2020
  • Mathematics
contestada

Find the 97th term of the arithmetic sequence 17, 26, 35, ...

Respuesta :

joshlind3
joshlind3 joshlind3
  • 09-11-2020

Answer:

881

Step-by-step explanation:

Arithmetic sequences can be written as:

[tex]a_n = a_1 + (n-1)d\\a_1 \: is \: 17\\a_n = 17 + (n-1)d\\[/tex]

The second term is 26,

[tex]26 = 17 + (2-1)d\\9 = 1d\\d = 9\\a_n = 17 + (n-1)*9\\a_n = 17 + 9n - 9\\a_n = 8 + 9n[/tex]

So, the [tex]97^t^h[/tex] term is

[tex]a_9_7 = 8 + 9(97)\\a_9_7 = 8 + 873\\a_9_7 = 881[/tex]

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