Question

Which value is the eighth in the sequence:

Answer 1

\[a _{n}=-\frac{ 1 }{ 125 }(5^{n-1})\]
a) -625
b) -125
c) -3125
d) -25

Answer 2

Well `n` is represented as a term so we would substitute `n` as `8` since we want to know of the `eighth` term.....

\(\Huge{a_{n}=-\frac{1}{125}(5^{8-1})}\)