Find the coordinates of the vertices and foci of the ellipse.x2 + 2y2 = 100
A. V(-10, 0), V(10, 0), F
, F
B. V(-10, 0), V(10, 0), F
, F
C. V(-100, 0), V(100, 0), F(0, -50), F(0, 50)
D. V
, V
, F
, F
Answer: B
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A man hikes up a mountain to the peak, where he rests for a few minutes and then continues down the other side of the mountain. We measure his location as distance up from the base of the mountain. What can be said about the man's velocity when he is hiking down the mountain?
A. Velocity is positive. B. Velocity is negative. C. Velocity is 0. D. None of the above.
Determine an appropriate viewing window for the given function and use it to display its graph.f(x) = 
A. 
B. 
C. 
D. 
Provide an appropriate response.Find the square root of the positive variable: 
A. 4x8 B. 8x8 C. 4x4 D. 8x4
Calculate the value mentally.
A. 3 B. 9 C. none of these D. 24