Write the number as a product of a real number and i. Simplify the radical expression.
A. -4i
B. -i
C. ± 4
D. 4i
Answer: D
Mathematics
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Find a parametrization for the line segment joining the points.(-2, -5, -4), 
A. x = 2t - 2, y = -5t, z = 
t - 4, 0 ? t ? 1
B. x = -2t, y = -5t, z = - 
t + 7, 0 ? t ? 1
C. x = 2t - 2, y = -5, z = 
t - 4, 0 ? t ? 1
D. x = -2t, y = -5, z = - 
t + 7, 0 ? t ? 1
Mathematics
In the figure below, a = 55. How many degrees from the horizontal position are the wings of the airplane?
?
?
A. 125 B. 55 C. 35 D. 80 E. 305
Mathematics
Evaluate the integral.
csc2x dx
A. - 
B. 
C. 
D. - 
Mathematics
Solve.Karl Mason sold 
gross of data disks on Monday, 
gross on Tuesday, and 
gross on Wednesday. What was the total amount of data disks sold?
A. 3 gross
B. 
gross
C. 
gross
D. 
gross
Mathematics