document.write( "Question 1022803: A boy throws a rock over the edge of a cliff. The rock is h feet above the boy after t seconds and is represented by function h=48t-16t^2.\r
\n" ); document.write( "\n" ); document.write( "a. What is the height of the rock after 2 seconds?\r
\n" ); document.write( "\n" ); document.write( "b. When is the rock 32 feet in the air?
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Algebra.Com's Answer #638424 by Alan3354(69443)\"\" \"About 
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A boy throws a rock over the edge of a cliff. The rock is h feet above the boy after t seconds and is represented by function h=48t-16t^2.\r
\n" ); document.write( "\n" ); document.write( "a. What is the height of the rock after 2 seconds?
\n" ); document.write( "h(t) = -16t^2 + 48t
\n" ); document.write( "Find h(2)
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\n" ); document.write( "b. When is the rock 32 feet in the air?
\n" ); document.write( "h(t) = -16t^2 + 48t
\n" ); document.write( "\"In the air\" ?? What does that mean?
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