Question

64,-48,36,-27 which formula can be used to describe the sequence

Answer 1

see explanation

Explanation:

These are the terms of a geometric sequence with n th term formula

`a_(n)` = a
`(r)^(n-1)`

where a is the first term and r the common ratio

r =
`(-48)/(64)` =
`(36)/(-48)` = -
`(3)/(4)`

the first term a = 64, hence

`a_(n)` = 64
`(-3/4)^(n-1)`