anonymous
  • anonymous
Use the interative rule to find the 5th term of the sequence an = 3•4n-1 a5 =?????? PLEASE HELP
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
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anonymous
  • anonymous
Yep ill help you
Landon34
  • Landon34
hey guys.

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anonymous
  • anonymous
Pleaseee help me
Landon34
  • Landon34
what is it?
Landon34
  • Landon34
oh.
anonymous
  • anonymous
Please revoke the medal.
anonymous
  • anonymous
someone please help me with my question
anonymous
  • anonymous
I have been stuck on it for hours
anonymous
  • anonymous
You need to insert 5, instead of n. \[a_n=3*4n-1\] \[a_5=3*4*5-1=?\]
anonymous
  • anonymous
What does it equal?
Nnesha
  • Nnesha
the question is \[\rm a_n=3*4^{n-1}\] right ? where n= number of a term we need like to find 2nd term replace n with 2 to find 8th term replace n with 8
anonymous
  • anonymous
wait then what do i do with the -1 ?
Nnesha
  • Nnesha
to find 5th term replace n with what ????
anonymous
  • anonymous
So after i replace the n with a 5 what do i do ?
anonymous
  • anonymous
Do i subtract 5-1?
Nnesha
  • Nnesha
correct!
anonymous
  • anonymous
After that?
Nnesha
  • Nnesha
5-1 =4 so now simplify \[a_5=3*4^4\]
anonymous
  • anonymous
a5 = 48??
anonymous
  • anonymous
so i multiply 3 • 16??
Nnesha
  • Nnesha
well what's the question is it 4 to the (n-1) power ??? if yes then no 48 isn't correct
anonymous
  • anonymous
then do i multiply 4•4•4•4 ??????
Nnesha
  • Nnesha
correct the exponent represent how many times we should multiply the base by itself
anonymous
  • anonymous
Then when i get that answer i multiply it by 3?
anonymous
  • anonymous
I got 3•256 = 768 SO A5=768?????
anonymous
  • anonymous
Hello?
anonymous
  • anonymous
I just want to make sure
Nnesha
  • Nnesha
yes that's correct . and sorry for late reply

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