RocksEugeler
RocksEugeler RocksEugeler
  • 02-10-2016
  • Mathematics
contestada

find the 20th term of an arithmetic sequence with a first term of 3 and a common difference of 5. a. 87 b. 98 c. 101 d. 130

Respuesta :

toporc
toporc toporc
  • 02-10-2016
The formula for the nth term of an arithmetic sequence is:
[tex] n_{th} \ term=a+(n-1)d[/tex]
where a is the first term and d is the common difference.
Plugging the given values into the formula, we get:
[tex]20th\ term=3+(20-1)5=98[/tex]
The answer is b. 98.

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