lilai3
  • lilai3
First question: How many ways can 2 names be chosen from 76 in a raffle if only on entry per person is allowed? Second question: How many ways can 4 finalists be selected from 50 contestants? Third question: How many handshakes can occur between 5 people if everyone shakes hands? First comment: Heeelllppppp meeee, pleeeeaaasssseeee!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Second comment: Thanks for helping me if you helped me. Third comment: If you help me you get a wonderful reward(or 2): I'll become your fan, or/and will give you a medal! (So then this random box pops up that says,'Hoot!...
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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lilai3
  • lilai3
(So then this random box pops up that says,'Hoot! You leveled up!')
anonymous
  • anonymous
Medal Bribery? :O 1st Answer: The formula for Combination is: \[n!\div(n -r)!(r!)\] so we get the values: n=76, and your r=2 \[76!\div(76 -2)!(2!)\] 1.) So, there is 2,850 ways to choose 2 raffle winners. For number 2, use the same Combination Formula: 2.) There are 230,300 ways finalists can be selected. For number 3, use a Circular Permutation formula (Pn): 3.) (5 - 1)! = 4! = 24 (*Anyone feel free to correct me if there is a mistake.)
anonymous
  • anonymous
I just read your Private message, LOL. You silly little girl.

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lilai3
  • lilai3
thank you.. and seriously? little girl? i am really offended by that, and.. IT TOOK U 4EVER! but overall, thanks... and no offense.. and also, let me remind u dat i'm not a 'silly little girl' (or otherwise, i'd hafta report u.... heheheh... just kidding, man!) but DO you wanta a medal? i'll give it to u anyways
lilai3
  • lilai3
and also, i'm not a girl?
anonymous
  • anonymous
Your name is Lilai, and you're not a girl? Now, that's even more bizzare.
lilai3
  • lilai3
dat's my school password-____-
anonymous
  • anonymous
Oh, hahahaha, sorry—Duuuuuude :D

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