Find the equation of the hyperbola satisfying the given conditions. The center is at the origin.Conjugate axis = 4, focus (0, -10)

A.  -  = 1
B.  -  = 1
C.  -  = 1
D.  -  = 1


Answer: B

Mathematics

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Solve the problem.Where does the graph of the function  f(x) = 3x3 - 5x2 - 15x + 25cross the x-axis?

A. 1.67, 
B. 1.67
C. , -
D. 1.67, , -

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Solve.x2 - x +  = 0

A.
B.
C.  ,  
D.  ,  

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Find the center and radius of the circle.x2 + y2 - 16x + 8y + 80 = 36

A. (-8, 4), r = 36 B. (-4, 8), r = 6 C. (8, -4), r = 6 D. (4, -8), r = 36

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