Find the limit.
sec2 x - tan2 y + z
A. 8
B. 7
C. 9
D. 10
Answer: D
Mathematics
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Find the value of the expression using the given values.-3xy + 4y - 4x = -1, y = -1
A. -7 B. -5 C. -11 D. -3
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Determine whether the following is a probability model.
A. Yes B. No
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Find the distance from the given real number to 0.
A. 
B. 
C. 
D. 
E. 1
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