Question

What is the eighth term in the arithmetic sequence defined by the explicit formula

an=2n+7?
a8=

Answer 1

The answer is 23.

an=2n+7 >>>>> 2*8= 16 >>> 16+7=23

There eighth term will be 23.

Answer 2

Find out the what is the eighth term in the arithmetic sequence defined by the explicit formula.

`a_(n) = 2n + 7`

To prove

As given the explicit formula for the arithmetic sequence .

`a_(n) = 2n + 7`

Put n = 8

`a_(8) = 2* 8 + 7`

`a_(8) = 16 + 7`

`a_(8) = 23`

Therefore the eighth term in the arithmetic sequence is 23 .