11 Answered Questions for the topic Math 30-2

Math 30 2

10/20/14

15 different books to choose from a door prize winner can choose 4
how many ways can the student select the 4 books and then arrange them on a shelf?
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Math 30 2

10/20/14

determine the number of 5 student committees that can be formed if?
a) the committee must have 4 boys?   b) the committee must have 1 or 2 girls?   c) there must be at least one boy on the committee?
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Math 30 2

10/18/14

possible 5 character passwords
the digits 0 to 9 where the first digit must be even and last digit must be odd, and where digits can be repeated? 
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Math 30 2

10/18/14

simply the expressions
2!(n-3)!/N-1)!   I get as far as 2x1(n-3)(n-2)(n-1)/(n-1)
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Math 30 2

10/18/14

evaluate using the permutation or combination formula
11C6 I beleive this is a combination formula, my answer is 120, can you please verify for me? Using the combination formula    
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Math 30 2

10/18/14

Dealing 4 cards from a standard deck of 52 cards?
permutation or a combinations and why? In a deck of 52 cards  dealing 4 cards?
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Math 30 2

10/17/14

evaluate using the permutation or combination formula
 evaluate with the use of permutations or combination formuls      8P5
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Math 30 2

10/17/14

4 times as many permutations
explain why there are 4 times as many permutations of the word CARPET as compared to the word CAREER.
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Math 30 2

10/17/14

how do you figure out the number of permutations in words?
Letters in the word YELLOWKNIFE?
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Math 30 2

10/16/14

There are 6 light switches on an electrical panel and each can be in the ON and OFF position.
Determine the number of ways that 3 of the switches can be in the ON position  This is a permutation with repeatin items
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Math 30 2

10/16/14

(n-1)!=5-----(n-3)!
(n-1) is the numerator and (n-3)! is the denominator   they equeal 5   I need to solve and verify
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