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burhan101
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[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 !
 one year ago
 one year ago
burhan101 Group Title
[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 !
 one year ago
 one year ago

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dan815 Group TitleBest ResponseYou've already chosen the best response.0
whys ur handwriting so neat..
 one year ago

dan815 Group TitleBest ResponseYou've already chosen the best response.0
its hard to read that scan tho
 one year ago

dan815 Group TitleBest ResponseYou've already chosen the best response.0
lets just go over the steps
 one year ago

dan815 Group TitleBest ResponseYou've already chosen the best response.0
tell me what you wrote for your surface area equation and volume equation
 one year ago

dan815 Group TitleBest ResponseYou've already chosen the best response.0
dw:1371786843467:dw
 one year ago

dan815 Group TitleBest ResponseYou've already chosen the best response.0
minizmine cost*
 one year ago

dan815 Group TitleBest ResponseYou've already chosen the best response.0
either way u do same functioon lol
 one year ago

dan815 Group TitleBest ResponseYou've already chosen the best response.0
is this what u did?
 one year ago

dan815 Group TitleBest ResponseYou've already chosen the best response.0
u 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
 one year ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
ill post a better picture cause i have the whole question finished
 one year ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
just that last step is missing
 one year ago

saloniiigupta95 Group TitleBest ResponseYou've already chosen the best response.1
I 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...
 one year ago

dan815 Group TitleBest ResponseYou've already chosen the best response.0
yes looks right
 one year ago

dan815 Group TitleBest ResponseYou've already chosen the best response.0
i checked ur first few steps its right upto there
 one year ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
mhm but then i have to find h
 one year ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
i'm not gettingg the right value for h
 one year ago

saloniiigupta95 Group TitleBest ResponseYou've already chosen the best response.1
@ dan815 dw:1371790110621:dw It should be 2 times one for lid and one for base...
 one year ago
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