Friday

January 30, 2015

January 30, 2015

Posted by **elito** on Thursday, June 28, 2012 at 10:04am.

10, 18, 26 . . .

- sequence math -
**Reiny**, Thursday, June 28, 2012 at 10:10amFor an AS

Sum(n) = (n/2)(2a + d(n-1))

in your case

Sum(27) = (27/2)(20 + 26(8) )

= ...

**Answer this Question**

**Related Questions**

Math for Educators - The first difference of a sequence is 8, 12, 16, 20,... The...

Further mathematics - An exponential sequence (GP)of positive terms and a linear...

Further mathematics - An exponential sequence of positive terms and a linear ...

Math - 1. Find the sum of the first five terms of the sequence 2/3, 2, 6, 18...

Math 12 - sum of 2nd and 5th terms of a geometric sequence is 13. the sum of ...

Further mathematics - An exponential sequence of positive terms and a linear ...

Functions 11: Series and Sequence 2 - The sum of the first two terms of a ...

Can someone help me?! - The 1st, 5th and 13th terms of an arithmetic sequence ...

Math sequence - The sum of the first 5 terms of an arthmetic sequence, is 30 and...

Maths - 1..The first 2 terms of a geometric progression are the same as the ...