29. A ball is thrown upward from a height of 80 feet. The ball's height y (in feet) after t seconds can be modeled by y = -16t + 64t + 80. a. How long until the ball hits the ground? b. How long until the ball reaches the height from which it was thrown? c. The ball reaches its maximum height after 2 seconds. What is the maximum height of the ball?

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A: Please see the below picture for detailed solution. 

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A: solution:-if u and v are orthogonal then u.v=0projvu  =  u.vv2·v=0v2·v=0  

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A: Given data÷  53 It means 5 divided by 3 Start the problem by making tape diagram of three parts,

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A: solve

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Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.