Question

write a rule for the nth term of the following sequence the find a^6 6,-30,150,-750

Answer 1

Seems like a geometric sequence. So it has the form \[
a_n = a_1r^{n-1}
\]Seems it starts at \(-30\), so \(a_1 = -30\).
We can find \(r\) by using this fact \[
r=\frac{a_{n+1}}{a_n}
\]

Answer 2

thank you but im not sure on how to solve that

Answer 3

@wio

Answer 4

What is \[
\frac{150}{-30}
\]?

Answer 5

@wio -5?