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kk1022

  • 4 years ago

Determine an expression for the cost

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  1. Tributized
    • 4 years ago
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    Pi = MC squared + the radius of pathagorean theorum divided by the square root of exponent X

  2. Tributized
    • 4 years ago
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    lol

  3. Tributized
    • 4 years ago
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    i don't either.

  4. Dockworker
    • 4 years ago
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    its correct assuming you buy more than 100 chips, otherwise, no

  5. dpaInc
    • 4 years ago
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    you can define the cost function with the restricted domains

  6. Dockworker
    • 4 years ago
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    yes, use a piece-wise function

  7. dpaInc
    • 4 years ago
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    a piece-wise function

  8. Dockworker
    • 4 years ago
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    also you should usee p instead of n, as the question asked for that

  9. Dockworker
    • 4 years ago
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    yes

  10. dpaInc
    • 4 years ago
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    you'll need to give C no matter what amount is purchased though...

  11. Dockworker
    • 4 years ago
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    p>=100

  12. Dockworker
    • 4 years ago
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    \[[100, \infty)\]

  13. Dockworker
    • 4 years ago
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    for 0<=p<100 C(P)=200

  14. Dockworker
    • 4 years ago
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    C(P)=2p rather lol

  15. Dockworker
    • 4 years ago
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    its a piece-wise function and is linear

  16. Dockworker
    • 4 years ago
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    yw

  17. brinethery
    • 4 years ago
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    I'm wondering if they also want it for under 100. Then you'd have two piecewise functions. c(n)=2n, n≤100 c(n) = 200+1.75(n-100) when n>100

  18. brinethery
    • 4 years ago
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    But the first part... would they want that as well?

  19. brinethery
    • 4 years ago
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    Oh I see.

  20. brinethery
    • 4 years ago
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    Sorry, I didn't read through all the comments...

  21. brinethery
    • 4 years ago
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    It's just a line. First, get it in slope-intercept form. c(n) = 200+1.75(n-100) = 200 +1.75n - 175 c(n)=1.75n +25 Your y-intercept is 25. Your slope is 1.75.

  22. brinethery
    • 4 years ago
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    Looks good.

  23. dpaInc
    • 4 years ago
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    just in case, because the problem did not state that they'll aways buy more than 100 chips, the function should look like this:|dw:1333233617956:dw|

  24. brinethery
    • 4 years ago
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    @dpaInc That's what I was thinking too. It's better safe than sorry if they don't specify "over 100 chips"

  25. brinethery
    • 4 years ago
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    Should be integers I think.

  26. brinethery
    • 4 years ago
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    since you can't have half of a chip :-)

  27. Dockworker
    • 4 years ago
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    for the piece-wise function theres an implied domain of [0, infinity) because you wouldn't purchase negative chips

  28. Dockworker
    • 4 years ago
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    but you could purchase 0, and as brinethery said, you'd want to restrict it to integers

  29. Dockworker
    • 4 years ago
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    you could just say all whole numbers

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