Without solving, determine the character of the solutions of the equation in the complex number system.x2 - 2x - 4 = 0
A. two unequal real solutions
B. two complex solutions that are conjugates of each other
C. a repeated real solution
Answer: A
Mathematics
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For the point given in rectangular coordinates, find equivalent polar coordinates 
for 
and 
(6
, 6)
A. (12, 30°) B. (24, 30°) C. (6, 45°) D. (12, 60°)
Mathematics
Find the standard equation of the parabola that satisfies the given conditions. Vertex: (-1, 0); focus: (2, 0)
A. y2 = 12(x + 1) B. (y + 1)2 = 12x C. y2 = -12(x + 1) D. x2 = 12(y + 1)
Mathematics
Find a rectangular equation for the plane curve defined by the parametric equations.x = 5 cos t, y = -2 sin t; 0 ? t ? 2?
A. 4x2 - 25y2 = 100; x ? 5
B. 4x2 + 25y2 = 1; - 
? x ? 
C. 4x2 - 25y2 = 1; x ? 
D. 4x2 + 25y2 = 100; -5 ? x ? 5
Mathematics
Find dy/dx.
Mathematics