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Mathematics 7 Online
OpenStudy (anonymous):

Help please. Find the value of each expression. posting equation in comment

OpenStudy (anonymous):

\[_{9} P _{3}\]

OpenStudy (anonymous):

60480

OpenStudy (uri):

Is this Probability? @Southern.Chiick

OpenStudy (uri):

@heybhai Don't give direct answers.It's against the Coc.

OpenStudy (anonymous):

I dont think so. All it says is Find the value of each expression @uri

OpenStudy (anonymous):

Can you show me how you got that? @heybhai

OpenStudy (anonymous):

@Southern.Chiick i used permutation formula.its 9!/3!

OpenStudy (anonymous):

what are the "!" for?

OpenStudy (anonymous):

that's the notation for factorial.so 3! means 3*2*1.

OpenStudy (anonymous):

oh okay! so thats all that needs to be done to find the answer?

OpenStudy (anonymous):

ya.this is called permutation and is used to find the way a thing can be ordered in maximum possible ways.

OpenStudy (anonymous):

okay. I understand now. Thank you!

OpenStudy (anonymous):

welcome.

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