document.write( "Question 277762: I need help on this new form of equation that we're learning in school that I still don't understand. It evidently has something to do with parabolas. Here's the problem:\r
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document.write( "In firefighting, a good water stream can be modeled by:\r
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document.write( "y=-0.003x^2 + 0.62x + 3\r
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document.write( "where x is the water's horizontal distance traveled (in feet) and y is its corresponding height (in feet). If a firefighter is aiming a good water stream at a building's window 25 feet above the ground, at what two distances can the firefighter stand from the building?\r
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document.write( "Please help me. I have no idea where to even start. \n" );
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Algebra.Com's Answer #202177 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! 25 will be y the height \n" ); document.write( "so plug in 25 for y and find x \n" ); document.write( "(x-161.165) (x-45.5022) = 0 \n" ); document.write( " |