SOLUTION: Please help again, appreciate any and all help.
2) Use the geometric sequence of numbers 1, 3, 9, 27, … to find the following:
a) What is r, the ratio between 2 consecutive terms
Algebra.Com
Question 39348: Please help again, appreciate any and all help.
2) Use the geometric sequence of numbers 1, 3, 9, 27, … to find the following:
a) What is r, the ratio between 2 consecutive terms?
Show work in this space.
b) Using the formula for the nth term of a geometric sequence, what is the 10th term?
Answer: the sum of the first 10 terms is: Show work in this space.
c) Using the formula for the sum of a geometric series, what is the sum of the first 10 terms?
Answer: Show work in this space
Answer by longjonsilver(2297) (Show Source): You can put this solution on YOUR website!
Common ratio...the number you multiple a term by to generate the next term.
1*3 is 3
3*3 is 9
9*3 is 27
--> r is 3
b.
1st term of a GP = a
2nd term of a GP = ar
3rd term of a GP = and so,
nth term of a GP =
So, 10th term is
19683
c. Sum of n terms =
29524
jon.
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