Solve by the quadratic formula. Simplify answers. Use i notation for nonreal complex numbers.2x2 + 10x + 2 = 0

A. x = 
B. x = 
C. x = 
D. x = 

Answer: D

Mathematics

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Find the center, transverse axis, vertices, and foci of the hyperbola.25x2 - 4y2 = 100

A. center at (0, 0)
transverse axis is x-axis
vertices: (0, -2), (0, 2)
foci: (0, -), (0, )
B. center at (0, 0)
transverse axis is x-axis
vertices: (-2, 0), (2, 0)
foci: (-, 0), (, 0)
C. center at (0, 0)
transverse axis is x-axis
vertices: (-5, 0), (5, 0)
foci: (-, 0), (, 0)
D. center at (0, 0)
transverse axis is x-axis
vertices: (-2, 0), (2, 0)
foci: (-, 0), (, 0)

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Mathematics

Divide using synthetic division.(25x3 + 25x2 + 7x - 4) ÷ 

A. 25x2 + 10x + 1 + 
B. 25x2 + 10x + 1 - 
C. 25x2 + 10x + 1 + 
D. 25x2 + 10x + 1 - 

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Mathematics

Find the integral.dx

A.  + C
B. 7 ln  + C
C. ln  + C
D.  + C

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Mathematics

Solve the system by the Gauss-Jordan method. ? ? ?

A.
B. ?
C. ?
D. ?
E. inconsistent

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Mathematics