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Mathematics 23 Online
OpenStudy (anonymous):

In how many ways could you choose two different letters from: C, O, U, N, T? Assume that the order of the letters matters.

OpenStudy (anonymous):

is it 20?

terenzreignz (terenzreignz):

Are you familiar with permutations?

OpenStudy (anonymous):

yes

terenzreignz (terenzreignz):

Well, how did you figure 20?

OpenStudy (anonymous):

well there are 5 letters and it says to choose two different letters so I did 5*4=20

OpenStudy (anonymous):

I just want to know if I am correct

terenzreignz (terenzreignz):

WEll, in that case, then I think so, yeah

OpenStudy (anonymous):

the possible answers are 60, 20, and 10

OpenStudy (anonymous):

does someone else thinks I am correct?

terenzreignz (terenzreignz):

no way to find out :P

OpenStudy (anonymous):

yes it is \(5\times 4\)

OpenStudy (anonymous):

lol I will put that answer... hope it is correct!

OpenStudy (anonymous):

thanks!! :)

OpenStudy (anonymous):

it is

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