Question

PLEASEEEE!! I NEED HELP !!

Answer 1

I did this question just the other day. The answer you are looking for is B or the second one.

Explanation:

Answer 2

The correct answer option is B.
`a _ 1 = -4`,
`r = (1)/(2)`,
`n = 6`,
`S_n = -(63)/(8)`.

Explanation:

We are given the following:

`6_\sum_(n=1)`
`-4((1)/(2) )^(n-1)`

and we are to identify the first term (
`a _ 1` ), common ratio (
`r` ), number of terms (
`n` ) and the sum of n terms (
`S_n` ).

Here,
`a _ 1 = -4`,

`r = (1)/(2)`,

`n = 6`; and

`S_n = (a_1(1-r^n))/((1-r)) = (-4(1-0.5^6))/((1-0.5)) = -(63)/(8)`