document.write( "Question 224025: The bottom of a box is supposed to be a rectangle with the perimeter of 36 cm. The box must be 4 cm high. what dimensions give the maximum volume? \n" ); document.write( "
Algebra.Com's Answer #167395 by drj(1380)![]() ![]() You can put this solution on YOUR website! The bottom of a box is supposed to be a rectangle with the perimeter of 36 cm. The box must be 4 cm high. what dimensions give the maximum volume?\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Step 1. The maximum volume is when the rectangle is a square and let s be the side of the square.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Step 2. The perimeter P of a rectangle (or square) means adding up all four sides. So P=s+s+s+s=4s since all four sides of the square are equal.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Step 3. But P=36=4s. Solving for s=36/4=9 cm.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Step 4. Volume V=A*h of the box where A is the area of the square and h is the height given as h=4.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Step 5. Area \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Step 6. Then V=A*h=81*4=324 cubic centimeters.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Step 7. ANSWER: The maximum volume of the box is 324 cubic centimeters.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I hope the above steps and explanation were helpful. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "For Step-By-Step videos on Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra and for \r \n" ); document.write( "\n" ); document.write( "Trigonometry please visit http://www.FreedomUniversity.TV/courses/Trigonometry. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Also, good luck in your studies and contact me at john@e-liteworks.com for your future math needs.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Respectfully, \n" ); document.write( "Dr J\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "http://www.FreedomUniversity.TV\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |