Divide and express the result in standard form.
A. 
+ 
i
B. 
+ 
i
C. 
+ 
i
D. 
- 
i
Answer: B
Mathematics
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Find parametric equations for the line described below.The line through the point P(-4, 2, 0) and perpendicular to the plane 
A. x = -4t - 4, y = 7t + 2, z = 7t B. x = -7t - 4, y = -7t - 4, z = 0 C. x = 4t + 4, y = -7t - 2, z = -7t D. x = -4t + 4, y = 7t - 2, z = 7t
Mathematics
Solve the problem.A merchant has coffee worth $4 a pound that she wishes to mix with 7 pounds of coffee worth $7 a pound to get a mixture that can be sold for $5 a pound. How many pounds of the $4 coffee should be used?
A. 7 lb B. 14 lb C. 21 lb D. 10.5 lb
Mathematics
Find all solutions to the equation. Express the solution in degrees.cos x = 0
A. 360°n B. 180°n C. 90° + 360°n D. 90° + 180°n
Mathematics
Graph the function.y = csc
A. 
B. 
C. 
D. 
Mathematics