document.write( "Question 887474: Hi there I need help figuring out what's to do for the following question.
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\n" ); document.write( "The path of a ball is modeled by the quadratic function h(t)=-5(t-2)^2+23, where height, h(t), is in meters and time, t, is in seconds.\r
\n" ); document.write( "\n" ); document.write( "1) When will the ball reach a height of 18 m?
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Algebra.Com's Answer #536651 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
h(t)=-5(t-2)^2+23 = 18
\n" ); document.write( "-5(t-2)^2 + 23 = 18
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\n" ); document.write( "There are 2 times, going up, and falling.
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