Question

The formula for a geometric sequence is an = 2(4)^n-1. What is the 3rd term of the sequence?

Answer 1

when n=3 ...

Answer 2

Answer choices are:

A. 24
B. 32
C. 16

\[a _{n}\]

Answer 3

we re starting at a1 right?

Answer 4

1-1=0 so that would seem right to me

Answer 5

Alright, then what would I do?

Answer 6

\[a_3=2\ (4)^{(3-1)}\]

Answer 7

the rest is just mathing it out

Answer 8

4^2 = 16 times 2 is ?

Answer 9

16+16 is?

Answer 10

My answer would be 32 then.

Answer 11

12+4+7+9 ... maybe lol

Answer 12

32 is good

Answer 13

32 is awesome

Answer 14

32 is, is .... magnificent?

Answer 15

yes!

Answer 16

how do you one-up an awesome?

Answer 17

I don't know
you could say 32 is myininaya!

Answer 18

myininaya>awesome

Answer 19

hmmm, you do make a compelling argument ;)

Answer 20

:)