mksimmons93 mksimmons93
  • 09-07-2021
  • Mathematics
contestada

There are 9 people in an office with 4 different phone lines. If all the lines begin to ring at once, how many groups of 4 people can answer these lines?

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brendasanchez04 brendasanchez04
  • 09-07-2021
Two groups of four people can answer the lines
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