Question:

Help me with my algebra 2 probs ?

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1 evaluate C(13,9)

a 17,160

b 715

c 259,459,200

d 117

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  1. C(13,9) = 13! / (9!(13 - 9)!)

    C(13,9) = 13! / (9!4!)

    C(13,9) = (13*12*11*10) / 4!

    C(13,9) = (13*12*11*10) / (4*3*2)

    C(13,9) = (13*11*5)

    C(13,9) = 13*55

    C(13,9) = 715

    Hope this helps you!

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