Find the eccentricity e of the hyperbola.x2 - 25y2 = 25
A. 
B. 
C. 
D. 2
Answer: A
Mathematics
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Identify the complex number as real or imaginary.-8 - 3i
A. Imaginary B. Real
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Solve the system by the addition method.
A. {(2, -6), (2, 6)} B. {(-2, -6), (-6, -2)} C. {(2, 6), (6, 2), (-2, -6), (-6, -2)} D. {(2, 6), (-2, 6), (2, -6), (-2, -6)}
Mathematics
Tell in which quadrant or on what coordinate axis the point lies.(-2, 0)
A. x-axis B. Quadrant II C. y-axis D. Quadrant I
Mathematics
Solve the problem.An object is propelled vertically upward from the top of a 208-foot building. The quadratic function 
models the ball's height above the ground, 
in feet, t seconds after it was thrown. After how many seconds does the object reach its maximum height? Round to the nearest tenth of a second if necessary.
A. 9.4 sec B. 2 sec C. 1.4 sec D. 4 sec
Mathematics