Find z1z2. Write your answer in standard polar form with the argument in radians.z1 = 5(cos 20° + i sin 20°), z2 = 4(cos 10° + i sin 10°)
A. 9(-cos 200° - i sin 200°)
B. 9(cos 30° + i sin 30°)
C. 20(cos 30° + i sin 30°)
D. 20(cos 200° + i sin 200°)
Answer: C
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Solve the problem by integration.Find the volume generated by revolving the first-quadrant area bounded by 
and x = 2 about the y-axis.
A. 
? ln 384
B. 10? ln 
C. 5? ln 384
D. 5? ln 
The table gives the winner of the weekly gymnastics competition for the first eight weeks of the season. 
Make a list of the leading averages in order from least to greatest for the weeks shown.
What will be an ideal response?
Find the quotient and the remainder.x4 + 3x2 + 7 divided by x2 + 1
A. x2 + 2x + 2; remainder 0
B. x2 + 2x + 
; remainder 5
C. x2 + 2; remainder 5
D. x2 + 2; remainder 0
Provide an appropriate response.Find the saddle value, if it exists, for the matrix game (include row and column location).
A. 1; row 3 column 2 B. 1; row 1 column 3 C. 3; row 1 column 1 D. 3; row 3 column 1