Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 5
B. 
C. 
D. 9
Answer: C
Mathematics
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Solve the problem.In the weighted voting system 
, every player has veto power. The value of the quota q is
A. 22. B. 11. C. 20. D. 21. E. none of these
Mathematics
Convert.7.8 tons to pounds
A. 15,600 lb B. 124.8 lb C. 7800 lb D. 1560 lb
Mathematics
Find the domain and the range for the function.
A. D: (-?, ?), R: (-?, ?) B. D: (0, ?), R: (0, ?) C. D: (-?, 0], R: (-?, 0] D. D: [0, ?), R: [0, ?)
Mathematics
Find the vertices and foci of the given ellipse.7y2 = 77 - 11x2
A. Vertices: (0, 
) and (0, -
);
Foci: (0, 2) and (0, -2)
B. Vertices: (
, 0) and (-
, 0);
Foci: (2, 0) and (-2, 0)
C. Vertices: (
, 0) and (-
, 0);
Foci: (7, 0) and (-7, 0)
D. Vertices: (0, 7) and (0, -7);
Foci: (0, 2) and (0, -2)
Mathematics