anonymous
  • anonymous
You have a CD with 14 songs, and you want to play 3 of them for your friends. How many different arrangements of 3 songs are possible? (Count two arrangements as different if they have the same 3 songs in a different order.)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Are you familiar with the formula for permutations?
anonymous
  • anonymous
i ws thinking its 2,744 because 14*14*14 = 2,744
anonymous
  • anonymous
But you can't choose the same song multiple times

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anonymous
  • anonymous
So after you choose the first one, you only have 13 to choose from.
anonymous
  • anonymous
it is not because in that case you are considering you can play the same song three times
anonymous
  • anonymous
well than itss 42 than .
anonymous
  • anonymous
No, your instinct was right as far as the multiplication goes. First you must choose 1 item from a group of 14, then you must choose 1 item from a group of 13, then 1 from a group of 12. So the total number of was you can do this is 14*13*12.
anonymous
  • anonymous
2,184
anonymous
  • anonymous
Indeed.
amistre64
  • amistre64
tag

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