document.write( "Question 147608: The height h (in feet) of an object that is dropped from the height of s feet is given by the formula h = s - 16t 2 , where t is the time the object has been falling. A 6 foot tall woman on a sidewalk looks directly overhead and sees a window washer drop a bottle from the 2 story. How long does she have to get out of the way? Round to the nearest tenth. (A story is 12 feet.) Choose the answer from the following: \n" ); document.write( "
Algebra.Com's Answer #107987 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! The height h (in feet) of an object that is dropped from the height of s feet is given by the formula h = s - 16t^2 , where t is the time the object has been falling. A 6 foot tall woman on a sidewalk looks directly overhead and sees a window washer drop a bottle from the 2 story. How long does she have to get out of the way? Round to the nearest tenth. (A story is 12 feet.) \n" ); document.write( ": \n" ); document.write( "two story; s = 24ft; person's height: h = 6 \n" ); document.write( ": \n" ); document.write( "24 - 16t^2 = 6 \n" ); document.write( ": \n" ); document.write( "-16t^2 = 6 - 24; subtract 24 from both sides \n" ); document.write( ": \n" ); document.write( "-16t^2 = -18 \n" ); document.write( ": \n" ); document.write( "16t^2 = + 18; multiplied equation by -1 \n" ); document.write( ": \n" ); document.write( "t^2 = \n" ); document.write( "t = \n" ); document.write( "t = \n" ); document.write( "t = \n" ); document.write( "or \n" ); document.write( "t = 1.06 sec \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check solution in original equation: t=1.06 \n" ); document.write( "-16(1.06^2) + 24 = \n" ); document.write( "-16(1.125) + 24 \n" ); document.write( "-18 + 24 = 6 ft \n" ); document.write( " |