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Mathematics 17 Online
OpenStudy (anonymous):

A graphic designer is hired to make a new logo in some combinations of the colors: red, white, blue, green, yellow, orange, brown, purple, and black. How many 3-color combinations of these colors are possible?

OpenStudy (anonymous):

@mertsj can u help me?

OpenStudy (mertsj):

9 choose 3

OpenStudy (anonymous):

can u help me with another question please?

OpenStudy (mertsj):

\[\frac{9\times8\times7}{3!}\]

OpenStudy (anonymous):

solve for n: n cr 3 = 3( n pr 2)

OpenStudy (mertsj):

Maybe. I'm not very good at probability.

OpenStudy (mertsj):

What does cr 3 and pr 2 mean?

OpenStudy (anonymous):

cr is combinations its actually supposed to be ncr and npr

OpenStudy (anonymous):

npr is for permutations.

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