Write the complex number in polar form. Express the argument ? in degrees, with 0 ? ? ? 360°.4
- 4i
A. 8(cos(330°) + i sin(330°))
B. 8(cos 30° + i sin 30°)
C. 8(cos(-60°) + i sin(-60°))
D. 8(cos 150° + i sin 150°)
Answer: A
Mathematics
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ds , C is the straight-line segment x = 0, y = 5 - t, z = t from (0, 5, 0) to 
A. 25
B. 0
C. 
D. 25
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from 
to 
.
A. 21
B. 
C. 14
D. 
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Solve the inequality. Graph the solution set, and state the solution set in interval notation.|x + 11| < 7
A. (-?, -4)
B. (-18, -4)
C. (4, 18)
D. (-?, -18)
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Perform the indicated operations and simplify the result. Leave the answer in factored form.
- 
A. 
B. 
C. 
D. 
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