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anonymous

  • one year ago

pre calculus help...

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    @TheSmartOne

  3. anonymous
    • one year ago
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    @Nnesha can you please help with this, what symbol is that?

  4. Nnesha
    • one year ago
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    P=permutation collections of things for permutation order is important (you will need this for word problem) formula to solve \[\huge\rm P(n,r)=\frac{ n! }{ (n-r)! }\]

  5. Nnesha
    • one year ago
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    \[\huge\rm ^np_r\]

  6. anonymous
    • one year ago
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    what does n and r stand for?

  7. Nnesha
    • one year ago
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    \[\huge\rm ^np_r\] \[\huge\rm ^3P_2\] in this example n is 3 and r is 2

  8. Nnesha
    • one year ago
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    |dw:1442509093003:dw|

  9. anonymous
    • one year ago
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    |dw:1442509296921:dw|

  10. Nnesha
    • one year ago
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    well the n represent total amount(objects taken) of something and r represent selecting numbers of something at a time hm

  11. Nnesha
    • one year ago
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    ye that's ur question now use the formula i gave for both top and bottom of the fraction

  12. Nnesha
    • one year ago
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    what is `1-` ?

  13. Nnesha
    • one year ago
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    question number ?

  14. anonymous
    • one year ago
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    no, it's part of the equation

  15. anonymous
    • one year ago
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    |dw:1442509560692:dw|

  16. Nnesha
    • one year ago
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    yes right do you know how to solve taht by hands

  17. anonymous
    • one year ago
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    |dw:1442509623352:dw|

  18. anonymous
    • one year ago
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    if i mess up please stop me

  19. anonymous
    • one year ago
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    |dw:1442509723233:dw|

  20. Nnesha
    • one year ago
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    looks right did you use calculator for 6!(6-4)!

  21. Nnesha
    • one year ago
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    ?

  22. anonymous
    • one year ago
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    and now since 1- is part of the equation|dw:1442509877489:dw|

  23. anonymous
    • one year ago
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    yea i used a calculator

  24. anonymous
    • one year ago
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    |dw:1442509979104:dw|

  25. anonymous
    • one year ago
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    that's correct right?

  26. Nnesha
    • one year ago
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    oh okay well you can do it by hands 6!= 6 · 5· 4· 3· 2· 1 meaning multiply by previous number

  27. Nnesha
    • one year ago
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    wait is \[1-\frac{ 1 }{ 56 }\] like his ?

  28. Nnesha
    • one year ago
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    this*

  29. anonymous
    • one year ago
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    yea because the 1- was part of the equation

  30. Nnesha
    • one year ago
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    yes right 55/56

  31. anonymous
    • one year ago
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    sweet thanks again!

  32. Nnesha
    • one year ago
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    yw :=)

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