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Pulsified333

  • one year ago

(a) How many bit strings of length 9 either begin with 2 0s or end with 2 1s? (inclusive or)

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  1. Pulsified333
    • one year ago
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    @dan815

  2. dan815
    • one year ago
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    |dw:1443069937533:dw|

  3. Pulsified333
    • one year ago
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    so does that mean (2^7)+(2^7)-4

  4. dan815
    • one year ago
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    |dw:1443070034362:dw|

  5. dan815
    • one year ago
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    |dw:1443070105189:dw|

  6. Pulsified333
    • one year ago
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    Why -2^5?

  7. dan815
    • one year ago
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    |dw:1443070148858:dw|

  8. Pulsified333
    • one year ago
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    oh

  9. dan815
    • one year ago
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    |dw:1443070188304:dw|

  10. Pulsified333
    • one year ago
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    that makes sense since, we are double counting

  11. dan815
    • one year ago
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    |dw:1443070226256:dw|

  12. Pulsified333
    • one year ago
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    thanks dude :D

  13. dan815
    • one year ago
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    |dw:1443070254274:dw|

  14. Pulsified333
    • one year ago
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    it was right :D

  15. Pulsified333
    • one year ago
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    wish me luck on my test tomorrow hahahaha

  16. dan815
    • one year ago
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    luck doesnt exist

  17. dan815
    • one year ago
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    fictitious lie

  18. dan815
    • one year ago
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    God's grace exists

  19. dan815
    • one year ago
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    :)

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