Question

Given a 1 =4,r=-5, n=7 what its the value of A(7)

Answer 1

-29

Explanation:

If
`a_1 = 1` and r = -5 for the rate or difference between terms, then the sequence is 1, -4, -9, .... etc.

To find a(7), continue the pattern until you find the 7th term.

1, -4, -9, -14, -19, -24, -29....

a(7) = -29