Solve the equation. Round to the nearest tenth, if necessary.If an object is thrown upward from the ground with an initial velocity of 64 ft/sec, its height after t sec is given by h = 64t - 16t2. Find the number of seconds before the object hits the ground.
A. 32 sec
B. 4 sec
C. 2 sec
D. 48 sec
Answer: B
Mathematics
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A. 
B. 
C. 
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Factor completely.x4 - 256
A. (x2 - 16)(x + 4)(x - 4) B. (x + 4)2(x - 4)2 C. (x2 + 16)(x + 4)(x - 4) D. Prime
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Multiply or divide as indicated. Write the answer in lowest terms.
÷ 
A. 
B. 
C. 
D. 
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