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Amy876

  • 4 years ago

What is the value of 7P5? A.5040 B.2520 C.42 D.21

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  1. Amy876
    • 4 years ago
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    please explain not sure what to do

  2. hoblos
    • 4 years ago
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    nPr = n!/(n-r)! apply this formula

  3. DHASHNI
    • 4 years ago
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    yeah its a permutation prob

  4. hoblos
    • 4 years ago
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    7P5 = 7!/(7-5)! = 7!/2! = ..

  5. Amy876
    • 4 years ago
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    ok thanks i got it! :D

  6. mud116
    • 4 years ago
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    Do you want an example?

  7. mud116
    • 4 years ago
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    oh nm lol

  8. Amy876
    • 4 years ago
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    ya i got it but thanks any way ;)

  9. mud116
    • 4 years ago
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    no prob :)

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