Perform the indicated operations and simplify.
+ 
- 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the focus and directrix of the parabola.y2 = -32x
A. F: (8, 0); D: x = -8 B. F: (-8, 0); D: y = 8 C. F: (0, -8); D: y = 8 D. F: (-8, 0); D: x = 8
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Match the surface show below to the graph of its level curves.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.x varies inversely as y2, and x = 2 when y = 30. Find x when y = 5.
A. x = 6 B. x = 24 C. x = 50 D. x = 72
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Find the derivative of the function.y = 5 sin x5
A. 
= 25x4 cos x4
B. 
= 25x4 cos x5
C. 
= 25x5 cos x5
D. 
= x cos x5
Mathematics