Solve the problem.The number of Hamilton circuits in K11 is

A. 11!.
B. 11.
C. 10!.
D. .
E. none of these


Answer: C

Mathematics

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Find the unknown length in the right triangle. 

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Give the coordinates of the point described on the unit circle.The reflection of the point  across the x-axis

A.
B.
C.
D.

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Solve the system by the substitution method.x + y = -1x2 + y2 = -4y - 3

A. {(1, -2), (2, -3)} B. {(-2, 1, (-3, 2)} C. {(-1, 0), (-2, 1)} D. {(0, -1), (1, -2)}

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Find the mean and standard deviation of the specified probability density function.f(x) = 0.6e-0.6x for [0, ?)

A. ? = 16.67, ? = 16.67 B. ? = 1.5, ? = 1.5 C. ? = 1.67, ? = 1.67 D. ? = 1.71, ? = 1.67

Mathematics