document.write( "Question 1090094: The carpenter drop a tool from the top of a building that is 200 feet high.The height of the above ground can be modeled by h= -16t^2 + 200 where h is the height I'm feet and t is the time in seconds,How long will it take for the tool to hit the ground?
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Algebra.Com's Answer #704497 by ikleyn(52943)\"\" \"About 
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document.write( "To find the time under the question, solve the equation\r\n" );
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document.write( "\"-16%2At%5E2+%2B+200\" = 0,   or, which is the same,\r\n" );
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document.write( "\"16%2At%5E2\" = 200  ====>  \"t%5E2\" = \"200%2F16\" = 12.5  ====>  t = \"sqrt%2812.5%29\" = 3.54 seconds  (approximately).\r\n" );
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