Question

Kind of suck help please ? brianslest

Answer 1

`d=7`

`a_9=59`

Explanation:

If the first term of a sequence is
`3` and the second term is
`10`, then each successive term in the sequence is
`7` more than the previous term. The common difference is
`7` (
`d=7` ).

The formula representing the arithmetic sequence is:

`a_n=7n-4`

Therefore, the ninth term in the sequence is:

`a_9=7(9)-4`

`a_9=63-4`

`a_9=59`