SOLUTION: A ball is thrown directly upward from a height of 7 ft with an initial velocity of 20 ​ft/sec. The function ​s(t)=−16t^2+20t+7 gives the height of the​ ball

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Question 1044875: A ball is thrown directly upward from a height of 7 ft with an initial velocity of 20 ​ft/sec. The function ​s(t)=−16t^2+20t+7 gives the height of the​ ball, in​ feet, t seconds after it has been thrown. Determine the time at which the ball reaches its maximum height and find the maximum height
Answer by ikleyn(52765) About Me  (Show Source):
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A ball is thrown directly upward from a height of 7 ft with an initial velocity of 20 ​ft/sec.
The function ​s(t)=−16t^2+20t+7 gives the height of the​ ball, in​ feet, t seconds after it has been thrown.
Determine the time at which the ball reaches its maximum height and find the maximum height
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