Find all solutions.x3 + 2x2 + 9x + 18 = 0
A. {2}
B. {-2}
C. {-3, 3, -2}
D. no real solution
Answer: B
Mathematics
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Solve using the multiplication principle.-8a = 56
A. -7 B. -64 C. 64 D. 1
Mathematics
To draw an ellipse that is 20 centimeters wide and 8 centimeters tall, how far apart should the two thumbtacks be? ?
A. 8 cm B. 17.8 cm C. 20 cm D. 18.3 cm E. none of these
Mathematics
Find the standard form of the equation of the hyperbola satisfying the given conditions.Center: (6, 3); Focus: (4, 3); Vertex: (5, 3)
A. (x - 3)2 - 
= 1
B. 
- (y - 6)2 = 1
C. 
- (y - 3)2 = 1
D. (x - 6)2 - 
= 1
Mathematics
Find the power of i.(2i)4
A. 16i B. -16 C. 16 D. -16i
Mathematics