document.write( "Question 1155539: cylindrical storage tank is to contain V=16,000π cubic feet (about 400,000 gallons). The cost of the tank proportional to its area, so the minimal - cost tank will be the one with minimum area. The volume (V) of cylinder of radius r and height h is πr^2, plus the side area, 2πrh. Find the dimensions, r and h, of the minimal - area tank.
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Algebra.Com's Answer #778140 by ikleyn(52786)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "A TWIN problem is just solved in the lesson\r
\n" ); document.write( "\n" ); document.write( "    - Calculus optimization problems,  Problem  6  and  Problem  7\r
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\n" ); document.write( "\n" ); document.write( "Read it attentively. It is your TEMPLATE.\r
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\n" ); document.write( "\n" ); document.write( "After reading, solve the given problem by the same way.
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