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
Answer: C
Mathematics
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?
?
A. 
B. 
C. 
D. 
E. 
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Solve the problem.Suppose that the velocity of a falling body is v = 
(k a constant) at the instant the body has fallen s meters from its starting point. Find the body's acceleration as a function of s.
A. a = - 
B. a = 
C. a = - 
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Add or subtract.
- 
A. 
B. 
C. - 
D. - 
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A set of data items is normally distributed with a mean of 60. Determine the z-score for the data point given, if the standard deviation is as given.data item: 47; standard deviation: 13
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