document.write( "Question 727216: I am really confused on this one. Here is the problem:\r
\n" );
document.write( "\n" );
document.write( "A child throws a ball up a hill that makes an angle of 45 degrees with the horizontal. The ball lands 100 feet up the hill. Its trajectory is a parabola with equation y= -X^2 + ax for some number a. Find a. \n" );
document.write( "
Algebra.Com's Answer #445011 by lynnlo(4176) ![]() You can put this solution on YOUR website! \n" ); document.write( " |