document.write( "Question 314084: 1)Suppose that Q is jointly proportional to R and the Square of S. If Q=24 when R=3 and S=4. Find Q when R=2 and S=3.\r
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document.write( "2)When and anvil is dropped into a gorge, the speed with which it strikes the ground is directly proportional to the square root of the distance it falls. An anvil that falls 400 feet hits the ground at a speed of 160 feet per second. Find the height of a cliff over the gorge is a dropped anvil hits the ground ata speed of 128 feet per second. \n" );
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Algebra.Com's Answer #224653 by ankor@dixie-net.com(22740) You can put this solution on YOUR website! 1)Suppose that Q is jointly proportional to R and the Square of S. \n" ); document.write( "Q:(R*S^2) \n" ); document.write( "; \n" ); document.write( "If Q=24 when R=3 and S=4. Find Q when R=2 and S=3. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Q = 9 \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "2)When and anvil is dropped into a gorge, the speed with which it strikes the \n" ); document.write( " ground is directly proportional to the square root of the distance it falls. \n" ); document.write( "s: \n" ); document.write( " An anvil that falls 400 feet hits the ground at a speed of 160 feet per second. \n" ); document.write( "Find the height of a cliff over the gorge is a dropped anvil hits the ground at a speed of 128 feet per second. \n" ); document.write( "let h = height of the cliff \n" ); document.write( "A ratio equation \n" ); document.write( " \n" ); document.write( "same as \n" ); document.write( " \n" ); document.write( "Cross multiply \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Square both sides \n" ); document.write( "h = 16^2 \n" ); document.write( "h = 256 ft \n" ); document.write( " |