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Snapbacklive

  • 3 years ago

An individual's phone number contains seven digits, not including the area code, from the set A shown below. A = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} Set B represents the digits in Brent's phone number. B = {5, 5, 5, 3, 0, 9, 9} Set C represents the digits in Charlie's phone number. C = {8, 6, 7, 5, 3, 0, 9} How many even numbers are in the set ∼(B ∩ C)? Numerical Answers Expected!

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  1. Tomas.A
    • 3 years ago
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    do you know what ∩ means?

  2. Snapbacklive
    • 3 years ago
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    union

  3. Tomas.A
    • 3 years ago
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    union is ∪, that one is intersection

  4. Snapbacklive
    • 3 years ago
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    oh

  5. Tomas.A
    • 3 years ago
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    so do you know what's intersection?

  6. Snapbacklive
    • 3 years ago
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    no

  7. Tomas.A
    • 3 years ago
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    B intersection C gives set which contains those elements which are in both sets B and C so what would be B ∩ C?

  8. Snapbacklive
    • 3 years ago
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    intersection

  9. Tomas.A
    • 3 years ago
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    if we had Z={1,2,3,4} and Y={3,4,5} intersection of Z and Y would be {3,4} because 1 is only in Z 2 is only in Z 3 is in Z and Y 4 is in Z and Y 5 is only in Y so only 3 and 4 are in both sets

  10. Snapbacklive
    • 3 years ago
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    oh

  11. Tomas.A
    • 3 years ago
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    do whats intersection of B and C?

  12. Tomas.A
    • 3 years ago
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    also set H={1,1,1,1,2,2,2,1,1,2,2,2} is exactly same set as H={1,2} because if same thing repeats it doesn't matter

  13. Snapbacklive
    • 3 years ago
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    ok

  14. Snapbacklive
    • 3 years ago
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    so what is it

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