Pulsified333
  • Pulsified333
student who wants to buy 3 CDs, but assume that there are 3 CDs featuring the piano, 6 CDs featuring the trumpet, and 5 CDs featuring the saxophone. (2) In how many ways can the selection be made if CD's featuring at least 2 different instruments are selected?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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kropot72
  • kropot72
Selections with 3 or 2 CDs of piano, trumpet or saxophone must be excluded. Therefore the required number of ways is given by: 14C3 - (3C3 + 3C2 + 6C3 + 6C2 + 5C3 + 5C2) = you can calculate
Pulsified333
  • Pulsified333
@kropot72 that is not correct
kropot72
  • kropot72
Do you have answer choices?

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Pulsified333
  • Pulsified333
no blanks
kropot72
  • kropot72
What are your reasons for disputing the method of solution that I posted?

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