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The Philly Inquirer
Questions (4)
Each of two urns contains green balls and red balls. Urn 1 contains 8 green balls and 12 red balls. Urn 2 contains 5 green balls
6 answers
1,192 views
1. Each of two urns contains green balls and red balls. Urn 1 contains 8 green balls and 12 red balls. Urn 2 contains 5 green
4 answers
891 views
16. Simplify 6p2
30 15 12 720 17. Simplify 8c5 6,720 336 56 10 Okay, so the formula for Permutations is n!/(n-r)! and the formula
0 answers
770 views
Hello! I am not asking for the answer to this question, I am asking for a step-by-step explanation.
Mr. Green band, choir, and
4 answers
1,526 views
Answers (1)
matt, I don't understand how you got that. The formula for permutation is n!/(n-r)! so that would be 6!/(6-2)! and then 6 - 2 = 4, so you would do 6 x 5 x 4 = 120, but after that I'm not sure. You certainly don't do 6 x 5, there is more to it than that.
