document.write( "Question 697198: a rocket is fired from the ground with the inital velocity of 110 ft per second. The height h(x) of the rocket at any time, x (in seconds) is given by the function h(x)= -16x^2+110x. Approximatley what is the maxium height of the rocket \n" ); document.write( "

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a rocket is fired from the ground with the inital velocity of 110 ft per second. The height h(x) of the rocket at any time, x (in seconds) is given by the function h(x)= -16x^2+110x. Approximatley what is the maxium height of the rocket
\n" ); document.write( "**
\n" ); document.write( "h(x)= -16x^2+110x
\n" ); document.write( "This is an equation of a parabola that opens downwards.
\n" ); document.write( "complete the square:
\n" ); document.write( "h(x)= -16(x^2-110x/16+(55/16)^2)+(55/16)^2 *16
\n" ); document.write( "h(x)= -16(x-(55/16)^2+(55/16)^2 *16
\n" ); document.write( "h(x)= -16(x-3.44)^2+189.1
\n" ); document.write( "maxium height of the rocket≈189.1 ft \n" ); document.write( "

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