Which of the following is the general term for the sequence
-a, a2, -a3, a4, 15
choices:
a) a(-1)n - 1
b) -a(-a)n-1
c) (-1)an + 1
d.) (-a)n + 1

This is an example of a geometric sequence.  To find for the nth term, we use the formula:

an = a1 r^(n – 1)               ---> 1

Where:

a1= 1st term of the sequence = -a

r = common ratio

To find for the common ratio r, we divide the 2nd term with the 1st term (we can also divide the 3rd term with the 2nd term; we can use any 2 terms as long as they are in succession.)

r = a^2 / -a

r = -a

Substituting a1 and r in equation 1:

an = -a (-a)^(n-1)

Therefore the B) -a(-a)n-1

it is b)

hope this : )

step-by-step explanation:

answer: it actually depends on which is the independent variable and which is the dependent variable. let us say we're looking at a linear equation. y=2x+3. we theoretically could switch the equation to be x=(y-3)/2 and it would be the same line. so either a causes b or it can be that b causes a. so technically the answer is false

step-by-step explanation: