Posted by **Riana** on Wednesday, January 2, 2013 at 7:50pm.

t8=1024 and decrease by 2/3. what will be the sum of the first 7 term.

i don't know what shud i do first to solve it.

## Answer This Question

## Related Questions

- Geometric - 1) The sum of last three terms of GP having n terms is 1024 time the...
- Precalculus - The 8th term in an arithmetic sequence is 5, and the sum of the ...
- math - The sum of the first 10 term of an arithmetic sequence is 145 and the ...
- math-G.P and A.P - A) which down the first G.P 5+10+20+.....to exceed 400000? B...
- mathematics - the 10th term of an arithmetic sequence is equal to the sum of 40 ...
- Math - 1) If the sum of the first n terms of a series is Sn where Sn=2n²-n, (a)...
- math - 1) If the sum of the first n terms of a series is Sn where Sn=2n²-n, (a)...
- Math - Question 1 Write the first four terms of the sequence whose general term...
- Math - an = 3n - 1 Answer 2, 3, 4, 5 2, 5, 8, 11 -2, -5, -8, -11 4, 7, 10, 13 3...
- Math PLEASE HELP PLEASE PLEASE PLEASE - Question 1 Write the first four terms ...

More Related Questions