Question

The formula for a geometric sequence is an = 1000(0.5)^n-1. What is the 3rd term of the sequence?

Answer 1

what do you mean by an? - the nth term?

Answer 2

\[a _{n}\]

Answer 3

Assuming this answer is correct I found this online, it's the same question. (last question asked)
http://answers.yahoo.com/question/index?qid=20101122113057AAlV9Ld

Answer 4

Thanks PsychoTink! :)

Answer 5

yes if we put x=3 in your formula 3rd term is

1000*0.5^2 = 1000 * 0.25 = 250

Answer 6

Thanks jimmyrep! :)

Answer 7

Answer is 250

Answer 8

Oh, That makes sense. Cool

Answer 9

Thank you SweetRascal! :)

Answer 10

You are welcome :)

Answer 11

yw