## anonymous 5 years ago $\sum_{i=1}^{8}$ 25(1/2)^i-1

1. amistre64

I can do that..... not step by step, but I canget the answer :)

2. anonymous

thats fine :) im not going to complain ;)

3. amistre64

is it 25 * (1/2)^i -1? its hard to tell from this angle

4. amistre64

or is the exponent (i-1)?

5. anonymous

yes (: it is the exponent

6. anonymous

25(1/2)square root i-1

7. amistre64

ok..... (25 * ((1 / 2)^(1 - 1))) + (25 * ((1 / 2)^(2 - 1))) + (25 * ((1 / 2)^(3 - 1))) + (25 * ((1 / 2)^(4 - 1))) + (25 * ((1 / 2)^(5 - 1))) + (25 * ((1 / 2)^(6 - 1))) + (25 * ((1 / 2)^(7 - 1))) + (25 * ((1 / 2)^(8 - 1))) = 49.8046875 sqrt(i-1)?$25 * (1/2) \sqrt{i-1}$

8. amistre64

you gotta give me the right equation lol.....what is it :)

9. amistre64

if you can take a screen shot of the problem and post it as an attachment; thats prolly best.

10. amistre64

you know how to do a screen shot?

11. anonymous

nope. can you tell im clueless -_-

12. amistre64

press this button on your keyboard

13. amistre64

open up paint

14. amistre64

paste the picture into the paint program

15. amistre64

16. amistre64

name it

17. anonymous

hi amistre64...could use your help when you're done ; )..sorry for intruding mamabeart88

18. amistre64

attactch and post :)

19. amistre64

Does that make sense :)

20. amistre64

ok btm ;)

21. anonymous

woww! mmk lemme try ! thanks amistre64! i never knew you could do that :D

22. amistre64

you never knew "I" could do that? lol

23. anonymous

AHAHA; wow apparently my grammer isnt any better -_-

24. anonymous

25. amistre64

ok.... I can do that :)

26. amistre64

thats what I did before :) and got: 49.8046875