Provide an appropriate response.On which line in the complex plane do the vectors corresponding to complex numbers of the form 
lie?
A. The line y = -x
B. The x-axis
C. The y-axis
D. The line y = x
Answer: D
Mathematics
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Choose the graph that matches the function. f(x) = 
x - 5
A. 
B. 
C. 
D. 
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Solve the problem.Find the angle between the planes 3x + 9y + 9z = 3 and 5x + 9y + 3z = 3
A. 53 B. 104 C. 167 D. 90
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Solve the problem.The profit made when t units are sold, t > 0, is given by 
Determine the number of units to be sold in order for P > 0 (a profit is made).
A. 20 < t < 10 B. t = 30 C. t = 20 or t = 10 D. t > 20 or t < 10
Mathematics
Multiply. Simplify if possible.
? 
? 
? 
A. 
B. 
C. 
D. 
Mathematics