If 5 times the 5th term of an ap is equal to 8 times the 8th term show that its 13th term is zero

Proved below

Step-by-step explanation:

Given that

.......(1

as we know

where d is the common difference. So, equation (1) would become

Rearranging

So,

.....(2)

As we know

......(3)

So, substituting the value of a1 into equation (3)

Hence Proved

- both graphs increase on their domain.

- the graphs of both functions have the same x-intercept.

- neither graph has a y-intercept.

1 1/7 hope i

step-by-step explanation:

8/7 = (1 * 7 + 1) / 7 = 1 + 1/7 = 1 1/7