document.write( "Question 1073425: Height of a Baseball\r
\n" ); document.write( "\n" ); document.write( "The height h in feet of a baseball t seconds after being hit by a batter is given by h(t) = -16t^2+80t+3\r
\n" ); document.write( "\n" ); document.write( "a) Determine to the nearest hundredth of a second when the ball will hit the ground.\r
\n" ); document.write( "\n" ); document.write( "b) During what time interval after the baseball is hit will its height exceed 76 ft.?
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Algebra.Com's Answer #688260 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
(a)
\n" ); document.write( "5.04 seconds\r
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\n" ); document.write( "\n" ); document.write( "b)
\n" ); document.write( "\"-16t%5E2%2B80t%2B3%3E76\"
\n" ); document.write( "\"-16t%5E2%2B80t-73%3E0\"
\n" ); document.write( "\"16t%5E2-80t%2B73%3C0\"
\n" ); document.write( "time between the roots...\r
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\n" ); document.write( "\n" ); document.write( "These roots, \"%2880%2B-+sqrt%2812%2A12%5E2%29%29%2F32\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%2880-12%2Asqrt%2812%29%29%2F32\" from \"%2880%2B12%2Asqrt%2812%29%29%2F32\"\r
\n" ); document.write( "\n" ); document.write( "\"%2824%2Asqrt%284%2A3%29%29%2F32\"\r
\n" ); document.write( "\n" ); document.write( "\"48sqrt%283%29%2F32\"\r
\n" ); document.write( "\n" ); document.write( "about 2.5 seconds
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