document.write( "Question 451166: A stone is thrown directly upward from a height of 30ft with an intial velocity of 60ft/sec. the height of the stone t seconds after it has been thrown is given by the function s(t)= -16t^2 +60t+30. Fine the time at which the stone reaches its maximum height and find that maximum height \n" ); document.write( "
Algebra.Com's Answer #310267 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
I just did this one, except for the 30 ft added.
\n" ); document.write( "See # 451150.
\n" ); document.write( "Add 30 feet to the answer.
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