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Mathematics 22 Online
OpenStudy (anonymous):

QUICK. please. help me find this,:( http://prntscr.com/pfqbi

hartnn (hartnn):

\[^nP_r = \dfrac{n!}{(n-r)!}\]

hartnn (hartnn):

put n= 14, r=6

OpenStudy (anonymous):

so 1.75?

OpenStudy (anonymous):

or am I not doing it right :/

hartnn (hartnn):

\[14! /(14-6)! = 14! /8! = 14*13*12*11*10*9=..?\]

OpenStudy (anonymous):

2162160? :)

hartnn (hartnn):

yes! correct :)

OpenStudy (anonymous):

yay :D thanks so much

hartnn (hartnn):

welcome ^_^

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