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Kagome_gurl8

  • 3 years ago

A manufacturer determines that the number of drills it can sell is given by the formula D=-3p^2+180p-280, where p is the price of the drills in dollars.

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  1. Kagome_gurl8
    • 3 years ago
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    a. At what price will the manufacturer sell the maximum number of drills? b. What is the maximum number of drills that can be sold?

  2. Chlorophyll
    • 3 years ago
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    Max point happens at x = -b/2a

  3. Chlorophyll
    • 3 years ago
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    Here x is p!

  4. Kagome_gurl8
    • 3 years ago
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    Understood but i am still confused....

  5. Kagome_gurl8
    • 3 years ago
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    on this question.... i keep trying to get a. but it always turns out to be 84. here are the answer choices $30; 2,420 drills $90; 8,380 drills $60; 280 drills $32; 2,427 drills

  6. Chlorophyll
    • 3 years ago
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    What do you get with p = 180/ 6 = ...?

  7. Kagome_gurl8
    • 3 years ago
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    30

  8. matricked
    • 3 years ago
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    u can use differentiation to obtain the results on differentiating u have -6p+180=0 or p=30 at this value of p the above expression may be maximum or minimum to check u differentiate (the result once more) now it stands -6 thus at p=30 the second ordr differentiation is neagtive and hence at p=30, D is amximum in order to obtain the max value of D use p=30 in D hope rest u get it...

  9. Kagome_gurl8
    • 3 years ago
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    Okay i got $30; 2,420 drills Is this correct for both questions?

  10. Chlorophyll
    • 3 years ago
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    Does it take you 16hrs to plug 30 into the equation ?

  11. Kagome_gurl8
    • 3 years ago
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    no, im sorry i fell asleep.

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