anonymous
  • anonymous
https://world.cyberhigh.org/Courses/alg2b/unit6/images/qalg2b6d04q.gif
Mathematics
  • Stacey Warren - Expert brainly.com
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jamiebookeater
  • jamiebookeater
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kropot72
  • kropot72
The equation for the nth term of a geometric sequence is \[n ^{th}\ term=ar ^{n-1}\] where a is the first term, and the common ratio is r. So if \[a _{n}=\frac{1}{4}\times6^{n-1}\] can you identify the number that is equivalent to r ?
anonymous
  • anonymous
i dont get it
kropot72
  • kropot72
The general equation is \[a _{n}=ar ^{n-1}\ .................(1)\] So if \[a _{n}=\frac{1}{4}6^{n-1}\ .............(2)\] then the fraction 1/4 in equation (2) is equivalent to a in equation (1). So in equation (2), is the number 6 eqivalent to r in equation (1)

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kropot72
  • kropot72
So in equation (2), is the number 6 equivalent to r in equation (1)?
anonymous
  • anonymous
yes
anonymous
  • anonymous
did you already plug in the numbers
kropot72
  • kropot72
The numbers 1/4 and 6 are given in the question. So you have correctly found the answer, that r = 6.
anonymous
  • anonymous
o ok koo thanks
kropot72
  • kropot72
You're welcome :)
anonymous
  • anonymous
the way you wrote was kind of confused me
kropot72
  • kropot72
Sorry about that.

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