document.write( "Question 955517: A small rock sits on the edge of a tall building. A strong wind blows the rock off the edge. The distance, in feet, between the rock and the ground tseconds after the rock leaves the edge is given by d=−16t2−4t+472.\r
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\n" ); document.write( "\n" ); document.write( "How many seconds after the rock leaves the edge does it hit the ground?\r
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\n" ); document.write( "\n" ); document.write( "If the answer is not an integer, enter it as a decimal. Round to the nearest hundredth, if needed.
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Algebra.Com's Answer #583735 by Alan3354(69443) $\"\"$ $\"About$

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A small rock sits on the edge of a tall building. A strong wind blows the rock off the edge. The distance, in feet, between the rock and the ground tseconds after the rock leaves the edge is given by d= -16t^2 - 4t + 472.\r
\n" ); document.write( "\n" ); document.write( "How many seconds after the rock leaves the edge is it 460 feet from the ground?
\n" ); document.write( "-16t^2 - 4t + 472 = 460
\n" ); document.write( "Solve for t.
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\n" ); document.write( "How many seconds after the rock leaves the edge does it hit the ground?
\n" ); document.write( "-16t^2 - 4t + 472 = 0
\n" ); document.write( "Solve for t.\r
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