anonymous
  • anonymous
The formula for a geometric sequence is an = 2(4)^n-1. What is the 3rd term of the sequence?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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amistre64
  • amistre64
when n=3 ...
anonymous
  • anonymous
Answer choices are: A. 24 B. 32 C. 16 \[a _{n}\]
amistre64
  • amistre64
we re starting at a1 right?

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amistre64
  • amistre64
1-1=0 so that would seem right to me
anonymous
  • anonymous
Alright, then what would I do?
amistre64
  • amistre64
\[a_3=2\ (4)^{(3-1)}\]
amistre64
  • amistre64
the rest is just mathing it out
amistre64
  • amistre64
4^2 = 16 times 2 is ?
myininaya
  • myininaya
16+16 is?
anonymous
  • anonymous
My answer would be 32 then.
amistre64
  • amistre64
12+4+7+9 ... maybe lol
amistre64
  • amistre64
32 is good
myininaya
  • myininaya
32 is awesome
amistre64
  • amistre64
32 is, is .... magnificent?
myininaya
  • myininaya
yes!
amistre64
  • amistre64
how do you one-up an awesome?
myininaya
  • myininaya
I don't know you could say 32 is myininaya!
myininaya
  • myininaya
myininaya>awesome
amistre64
  • amistre64
hmmm, you do make a compelling argument ;)
myininaya
  • myininaya
:)

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