Question

For the sequence an=3n-5 what is the value of a30

Answer 1

`a_(30) = 85`

Explanation:

For a sequence
`a_n = 3n - 5`, substitute the value n = 30 to find
`a_(30)`.

`a_n = 3n - 5\\a_(30) = 3(30) - 5\\a_(30) = 90 - 5\\a_(30) = 85`