Find the second derivative.y = 3x4 - 3x2 + 5
A. 36x2 - 6
B. 36x2 - 6x
C. 12x2 - 6x
D. 12x2 - 6
Answer: A
Mathematics
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Find projv u.v = 2i - 2j - 4k, u = 5i - 12k
A. 
i - 
k
B. 
i - 
j - 
k
C. 
i - 
j - 
k
D. 
i - 
k
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Simplify the power of i.
?
?
?
A. 
B. 
C. 
D. 
E. 
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Solve.Jim can run 5 miles per hour on level ground on a still day. One windy day, he runs 11 miles with the wind, and in the same amount of time runs 6 miles against the wind. What is the rate of the wind?
A. 5 mph
B. 1
mph
C. 17 mph
D. 2
mph
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Use a graphing calculator to graph the system of inequalities.y ? log xy ? 
A. 
B. 
C. 
D. 
Mathematics