Question

Please help me need help with math

Answer 1

- 1,024

Explanation:

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

r =
`(a_(n+1) )/(a_(n) )`

~~~~~~~~~~~~

r = 2 ÷ ( - 1 ) = - 2

`a_(1)` = - 1

n = 11

`a_(11)` = ( - 1 )
`(-2)^(11-1)` = - 1,024