document.write( "Question 1072542: what is cost of metal in a single can if radius is 1.30 inches height is 3.95 inches and cost is 0.0040. \n" ); document.write( "

Algebra.Com's Answer #687402 by Boreal(15235) $\"\"$ $\"About$

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Area is 2*pi*r^2+2pi*rh=42.88 in^2*(0.0040 per sq in, I assume)=0.1715, cost units not known.
\n" ); document.write( "Check with 2pi*r*h+2 pi*r^2=2pi*r(h+r)=42.88 \n" ); document.write( "

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