document.write( "Question 399245: A rectangular box with volume 18 cubic metres has a square base with side length x metres. Express the surface area S of the box as a function of x. \n" ); document.write( "

Algebra.Com's Answer #282877 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
A rectangular box with volume 18 cubic metres has a square base with side length x metres.
\n" ); document.write( "Express the surface area S of the box as a function of x.
\n" ); document.write( ":
\n" ); document.write( "The Volume of box with a square base: V = x^2 * h
\n" ); document.write( "x^2 * h = 18
\n" ); document.write( "h = $\"h%2Fx%5E2\"$
\n" ); document.write( ":
\n" ); document.write( "Surface area: S.A. = 2(L*W) + 2(L*h) + 2(W*h)
\n" ); document.write( "In this problem:
\n" ); document.write( "L & W = x; h = $\"18%2Fx%5E2\"$
\n" ); document.write( "we have
\n" ); document.write( "S.A. = 2x^2 + 4(x* $\"18%2Fx%5E2\"$ )
\n" ); document.write( "S.A. = 2x^2 + $\"72%2Fx\"$ \n" ); document.write( "

\n" );