Posted by **Heather** on Sunday, December 18, 2011 at 2:29pm.

the last two tems in a geometric series are 1080 and 6480 and the sum ofthe series is 7775 what is the first term in the series

## Answer this Question

## Related Questions

- math studies - An arithmetic series has a first term of -4 and a common ...
- Pre-Calculus - Q.Determine the sum of each infinite geometric series. t_1= 8 r...
- Geometric Series (Algebra 2) - I need some assistance or a formula when trying ...
- calc. - find the sum of the series of (-2)^n/3^n+1. This is an alternating ...
- math B30 - If the seventh term of a geometric series is 192, and the first term ...
- Geometric series - The sum of the first five terms of a geometric series is 186 ...
- math - the "k"th term of a series, Sk=a 1-r^k/1-r, is the sum of the first "k" ...
- math help!! - the first term in a geometric series is 4 and the sum of the first...
- Math. - The first term of a geometric series is 4 and the sum of the first three...
- Maths - Geometric Progression - The second term of a GP is 1/2 and the sum ti ...