Find the volume of the solid generated by revolving the region about the y-axis.The region enclosed by the triangle with vertices (0, 0), (3, 0), (3, 2)
A. 6?
B. 12?
C. 3?
D. 36?
Answer: B
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The triangles are similar. Find the missing side, angle or value of the variable.?B
a = 7 cmb = 65°
A. 65° B. 7 cm C. 85° D. 30°
Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set. x + y + z = 92x - 3y + 4z = 7
A. Cramer's rule does not apply since D = 0; 
B. Cramer's rule does not apply since D = 0; 
C. Cramer's rule does not apply since D = 0; ?
D. Cramer's rule does not apply since D = 0; 
Simplify the radical expression. Assume all variables represent nonnegative real numbers.
A. 405x
B. 9x
C. 9
D. 9x
Find the product of the complex numbers. Leave answer in polar form.z1 = 5(cos 20° + i sin 20°)z2 = 4(cos 10° + i sin 10°)
A. 9(-cos 200° - i sin 200°) B. 20(cos 200° + i sin 200°) C. 9(cos 30° + i sin 30°) D. 20(cos 30° + i sin 30°)