document.write( "Question 77325: a rock falls from a tower that is 176ft high. As it is falling its height is given by the formula h=176-16t^2. how many seconds will it take for the rock to hit the ground(h=0) \n" ); document.write( "
Algebra.Com's Answer #55441 by rajagopalan(174)\"\" \"About 
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guiding formula h=176-16t^2
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\n" ); document.write( "176-16t^2=h
\n" ); document.write( "176-16t^2=0 (ground level)
\n" ); document.write( "16t^2=176-0
\n" ); document.write( "t^2=176/16
\n" ); document.write( "t^2=11
\n" ); document.write( "So t=sq root of 11 = approx 3.3 seconds
\n" ); document.write( "okay
\n" ); document.write( "good day\r
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