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anonymous

  • 5 years ago

\[\sum_{i=1}^{8}\] 25(1/2)^i-1

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  1. amistre64
    • 5 years ago
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    I can do that..... not step by step, but I canget the answer :)

  2. anonymous
    • 5 years ago
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    thats fine :) im not going to complain ;)

  3. amistre64
    • 5 years ago
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    is it 25 * (1/2)^i -1? its hard to tell from this angle

  4. amistre64
    • 5 years ago
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    or is the exponent (i-1)?

  5. anonymous
    • 5 years ago
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    yes (: it is the exponent

  6. anonymous
    • 5 years ago
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    25(1/2)square root i-1

  7. amistre64
    • 5 years ago
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    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
    • 5 years ago
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    you gotta give me the right equation lol.....what is it :)

  9. amistre64
    • 5 years ago
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    if you can take a screen shot of the problem and post it as an attachment; thats prolly best.

  10. amistre64
    • 5 years ago
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    you know how to do a screen shot?

  11. anonymous
    • 5 years ago
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    nope. can you tell im clueless -_-

  12. amistre64
    • 5 years ago
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    press this button on your keyboard

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  13. amistre64
    • 5 years ago
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    open up paint

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  14. amistre64
    • 5 years ago
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    paste the picture into the paint program

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  15. amistre64
    • 5 years ago
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    save it to your desktop

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  16. amistre64
    • 5 years ago
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    name it

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  17. anonymous
    • 5 years ago
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    hi amistre64...could use your help when you're done ; )..sorry for intruding mamabeart88

  18. amistre64
    • 5 years ago
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    attactch and post :)

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  19. amistre64
    • 5 years ago
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    Does that make sense :)

  20. amistre64
    • 5 years ago
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    ok btm ;)

  21. anonymous
    • 5 years ago
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    woww! mmk lemme try ! thanks amistre64! i never knew you could do that :D

  22. amistre64
    • 5 years ago
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    you never knew "I" could do that? lol

  23. anonymous
    • 5 years ago
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    AHAHA; wow apparently my grammer isnt any better -_-

  24. anonymous
    • 5 years ago
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  25. amistre64
    • 5 years ago
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    ok.... I can do that :)

  26. amistre64
    • 5 years ago
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    thats what I did before :) and got: 49.8046875

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