SOLUTION: Can anyone help me with these??? Please! 1) A person is wearing a bracelet with 12 settings around the bracelet. How many different ways can 12 birthstones be arranged around

Question 202644: Can anyone help me with these??? Please!

1) A person is wearing a bracelet with 12 settings around the bracelet. How many different ways can 12 birthstones be arranged around the bracelet? Leave the answer in factorial form.
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2) How many subsets of three elements each exist in a set of six elements?
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3) How many different groups of 48 cars can be formed from 50 cars?
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4) How many different ways can an executive committee of eight people sit at a round table?
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5) What is the probability of not drawing a green marble from a jar containing 7 red, 4 green, 3 white, and 9 blue marbles?
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Thanks for everything!
~Sarah~
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
1) A person is wearing a bracelet with 12 settings around the bracelet. How many different ways can 12 birthstones be arranged around the bracelet? Leave the answer in factorial form.
Ans: 11!
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2) How many subsets of three elements each exist in a set of six elements?
6C3 = (6*5*4)/(1*2*3) = 20
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3) How many different groups of 48 cars can be formed from 50 cars?
50C48 = 50C2 = (50*49)/(1*2) = 1225
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4) How many different ways can an executive committee of eight people sit at a round table?
Ans 7!
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5) What is the probability of not drawing a green marble from a jar containing 7 red, 4 green, 3 white, and 9 blue marbles?
# of "not green" marbles = 19
Ans: 19/23
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Cheers,
Stan H.

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