Homework Help Forum: math

Posted by Anonymous on Thursday, November 5, 2009 at 11:10pm.

Find the common ratio and write out the first four terms of the geometric sequence bracket (3 to the power of n-1)/(10) bracket ???? please help me!

• math - drwls, Thursday, November 5, 2009 at 11:21pm

  For n=1, 3^(n-1)/10 = 1/10 For n=2, 3^1/10 = 3/10 For n=3, 3^2/10 = 9/10 For n=4, 3^3/10 = 27/10 The ratio of successive terms is 3. I don't know why you wrote "bracket" at the end of your question.

  
  

• math - Anonymous, Thursday, November 5, 2009 at 11:37pm

  there are two brackets, one on each side of the problem. The ratio was right thank you! But it said the n=1-4 was wrong?

  
  

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