anonymous
  • anonymous
Four friends are going to sit together in a roller-coaster car that has 4 seats. In how many different arrangements can they sit?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
4 people can go in the first seat, then there are 3 left to pick for the next, then 2 left to pick for the last, then one for the final one. So there are 4 x 3 x 2 x 1 choices. We can also say this is '4 factorial' or 4!

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