Math+ check!

oka so the question is as follows:
for the geometreic sereis 8+48+288+... find the sum of the first ten terms, s 10

so I would use the formula:
sn= a(1-r^n)/ 1-r
were
a= 8
r= 48
n= 10

8(1-(48)^10)/1-48

I get lost I don't know how to arrive to the answer from here! but is the rest correct?


No. r is 6. Notice 8*6= 46, 48*8= 288, etc.

Other wise, it is ok.

  1. 0
asked by bob!

Respond to this Question

First Name

Your Response

Similar Questions

  1. History

    During the Oka Crisis, the Mohawk later surrendered, but the plan for the town of oka to create the land into a golf course was cancelled. Did the Mohawks get to keep their land?
  2. Math

    A series of 288 consecutive odd integers has a non-zero sum that is a perfect fourth power. Find the smallest possible sum for this series.
  3. matha

    the sum of area and perimeter ofintegral right angle triangle is 288. find the sides.
  4. Help!! Geometric progression

    Question(1):A G.P has a common ratio of 2 find the value of 'n' for which the sum 2n terms is 33 times the sum of n?? Question(2):in A G.P the product of the 2nd and the 4thterm is double ,the 5th term and the sum of the first 4
  5. Reply to grant about a regression problem

    This is a reply to the question posted here http://www.jiskha.com/display.cgi?id=1178989522 As I explained there, you can find the parameters by defining: x1 = Sin(0.49 t) x2 = Cos(0.49 t) and treat this as an ordinary linear
  6. math

    Q: Corbin is playing a board game that requires rolling two number cubes to move a game piece. He needs to roll a sum of six on his next term and then a sum of ten to land on to the next two bonus spaces. what is the probability
  7. math

    The third term of a G.P is 24 and the sum of the first two terms is 288. If all the terms are positive,find a)the first term and the common ratio b)the sum of all the terms from 4th term to the 8th term
  8. Algebra

    I have a few problems I need some help with. The first is Evaluate the sum. 1. There is an E like symbol on the top is 10 on the bottom n=1 and to the right (7-2n) 2. The next question is find a10 for an arithmetic sequence with
  9. GREATER TOMMOROW

    THE SUM OF THE FIRST TWO TERM OF A GP IS 6 AND THE SUM OF THE 5TH AND 8TH TERM IS 288. SOLVE
  10. Health

    Why is Oka cheese production important to Canada, or other countries around the world?

More Similar Questions