Find all real solutions. Do not use a calculator.5x3 + 25 = x(x + 125)
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the vertices and foci of the ellipse.16x2 + 49y2 = 784
A. Vertices: (±4, 0); Foci: (±
, 0)
B. Vertices: (±7, 0); Foci: (±
, 0)
C. Vertices: (0, ±7); Foci (0, ±
)
D. Vertices: (0, ±4); Foci (0, ±
)
Mathematics
Sketch the indicated curve or surface.An electric charge is so distributed that the electric potential at all points on an imaginary surface is the same. Such a surface is called an equipotential surface. Sketch the graph of the equipotential surface whose equation is 4x2 + y2 + z2 = 4.
What will be an ideal response?
Mathematics
Establish the identity.
= 
What will be an ideal response?
Mathematics
Simplify.(-16)0
A. 1 B. 16 C. -16 D. -1
Mathematics