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anonymous
 2 years ago
[check my work ]
A cylindrical container, with a volume of 4000cm³ is being constructed to build candies. The cost of the base and lid is $0.005/cm², and the cost of the side walls is $0.0025/cm². Determine the dimensions of the cheapest possible container.
Okay so I finished the problem and got the right radius but i'm having problems finding the height !
anonymous
 2 years ago
[check my work ] A cylindrical container, with a volume of 4000cm³ is being constructed to build candies. The cost of the base and lid is $0.005/cm², and the cost of the side walls is $0.0025/cm². Determine the dimensions of the cheapest possible container. Okay so I finished the problem and got the right radius but i'm having problems finding the height !

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dan815
 2 years ago
Best ResponseYou've already chosen the best response.0whys ur handwriting so neat..

dan815
 2 years ago
Best ResponseYou've already chosen the best response.0its hard to read that scan tho

dan815
 2 years ago
Best ResponseYou've already chosen the best response.0lets just go over the steps

dan815
 2 years ago
Best ResponseYou've already chosen the best response.0tell me what you wrote for your surface area equation and volume equation

dan815
 2 years ago
Best ResponseYou've already chosen the best response.0either way u do same functioon lol

dan815
 2 years ago
Best ResponseYou've already chosen the best response.0u can rewrite h as a function of r or r as a function of h and substitute into 2nd equation and take the derivative solve for the critical points, and see what dimensions minimize cost

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0ill post a better picture cause i have the whole question finished

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0just that last step is missing

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0I don't know what the above discussion is going into, but if you have found out the radius, just substitute the value in pi*r^2*h = 4000 since the volume of cylinder is given by pi*r^2*h...

dan815
 2 years ago
Best ResponseYou've already chosen the best response.0i checked ur first few steps its right upto there

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0mhm but then i have to find h

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0i'm not gettingg the right value for h

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0@ dan815 dw:1371790110621:dw It should be 2 times one for lid and one for base...
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