Write the complex number in trigonometric form, using degree measure for the argument.2
- 2i
A. 4(cos(-60°) + i sin(-60°))
B. 4(cos 30° + i sin 30°)
C. 4(cos(330°) + i sin(330°))
D. 4(cos 150° + i sin 150°)
Answer: C
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Find the exact interest for the following. Round to the nearest cent.$3790 at 12
% for 162 days
A. $214.89 B. $477.54 C. $211.95 D. $201.86
Multiply the polynomials using the FOIL method. Express the answer as a single polynomial in standard form.(3x + 10y)(-3x + 7y)
A. -9x2 - 30xy + 70y2 B. -9x2 - 9xy - 9y2 C. -9x2 + 21xy + 70y2 D. -9x2 - 9xy + 70y2
Solve.In preparation for his new job, Kevin bought two suits at $164 a piece, five shirts at $26 a piece, two pairs of shoes at $65 a piece, and four ties at $23 a piece. What was the total cost of these items?
A. $285 B. $715 C. $731 D. $680
Simplify the root, if possible.
A. cannot be simplified
B. (5m + 3n)2
C. 
D. 5m + 3n