document.write( "Question 1117051: A cannon ball is thrown into the air from a height ,(h),,of 12 m. The height of the ball above ground t seconds after being shot is approximated by h(t) = -5t squared +15 t +12. Determine when the ball is 22 m above ground. Thanks \n" ); document.write( "
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A cannon ball is thrown into the air from a height ,(h),,of 12 m. The height of the ball above ground t seconds after being shot is approximated by h(t) = -5t squared +15 t +12. Determine when the ball is 22 m above ground
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\n" ); document.write( "h(t) = -5t^2 + 15t + 12 = 22
\n" ); document.write( "It's a quadratic.
\n" ); document.write( "Solve for t
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