factorials evalutate the expression
(9,4) (5,4) (3,1) I had to write this problem like this a but that are like a fraction without the divider between them.

Question

factorials evalutate the expression
(9,4) (5,4) (3,1)  I had to write this problem like this a but that are like a fraction without the divider between them.

anonymous · Answer

i think you mean for example the number of combinations of 4 from 9 ???

anonymous · Answer

yes I believe so

anonymous · Answer

can you help me?

anonymous · Answer

yes - this is the way i do them

9C4  =   9x8x7x6
              -------   =      126
              4x3x2x1

5C4 = 5x4x3x2
           -------      =  5
            4x3x2x1

3C1 =  3     =   3
            -
            1 

do you see the pattern?

anonymous · Answer

Thank you so much I can do them alone but I am confused about them all being together!

anonymous · Answer

so the answer is 3 correct?

anonymous · Answer

oops - i've taken them to be 3 separate questions - i'm confused now to be honest

anonymous · Answer

maybe you can draw hot they were written

anonymous · Answer

no they are one but in the example that I am given it comes out to a one number answer because  it all reduces to a fractionI will try maybe copy and pasting it

anonymous · Answer

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