Answer:
-4
Step-by-step explanation:
Answer:
15000
Step-by-step explanation:
Answer:
There is nothing given
Step-by-step explanation:
It might be whichever one has a solution that is false, such as 9=0, or something like that.
The third one!!
Hope this helps
Answer:
Step-by-step explanation:
So a geometric sequence can be explicitly defined as: . IN this case we're given r, but we don't know what a_1 is. We can find this by lugging in 4 as n, and -8 as a_n, since they're given values
Plug known values in:
Subtract the values in the exponent
Simplify the exponent
Divide both sides by -8
So the nth term can be defined as: , and since the 1 is redundant, the equation can simply be defined as: