document.write( "Question 994582: Water is poured into a conical paper cup at the rate of 3/2 in^3/sec . If the cup is 6 inches tall and the top
\n" ); document.write( "has a radius of 3 inches, how fast is the water level rising when the
\n" ); document.write( "water is 3 inches deep?\r
\n" ); document.write( "\n" ); document.write( "The water level is rising at a rate of____\r
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Algebra.Com's Answer #613644 by KMST(5328)\"\" \"About 
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The volume of a cone of height \"h\" and radius \"R\" is given by
\n" ); document.write( "\"V=%281%2F3%29%2Api%2AR%5E2%2Ah\" .
\n" ); document.write( "I am not going to keep mentioning units,
\n" ); document.write( "but time, \"t\" is understood to be measured in seconds;
\n" ); document.write( "\"h\" and \"R\" are understood to be measured in inches,
\n" ); document.write( "and \"V\" is understood to be in cubic inches.
\n" ); document.write( "The cup is filling at a rate of \"dV%2Fdt=3%2F2\" .
\n" ); document.write( "As the water is filling the conical paper cup,
\n" ); document.write( "the water is in the shape of a similar cone,
\n" ); document.write( "with a radius to height ratio of \"3%2F6=1%2F2\" ,
\n" ); document.write( "so \"R=h%2F2\" .
\n" ); document.write( "The volume of water in the cup as a function of the water-cone height is
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\n" ); document.write( "The inverse function is
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\n" ); document.write( "When \"h=3\" , \"V=%28pi%2F12%29%2A3%5E3=%28pi%2F12%29%2A9=9pi%2F4\" ;
\n" ); document.write( " , and
\n" ); document.write( "\"dh%2Fdt=%28dh%2FdV%29%2A%28dV%2Fdt%29=%284%2F9pi%29%2A%283%2F2%29=highlight%282%2F3pi%29\"
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