Solve the equation. = 4 - 

A. {4, 8}
B. {4, -4}
C. {0, 4}
D. {0, -4}


Answer: C

Mathematics

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Use counting rules to determine the probability.A tourist in France wants to visit 8 different cities. If the route is randomly selected, what is the probability that she will visit the cities in alphabetical order?

A.
B.
C.
D. 40,320

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Solve by the method of your choice.4x2 = 81

A. ± 
B. ± 
C.
D. ± 

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Use the brute force algorithm to find a minimum Hamilton circuit for the graph. Also, determine the total weight of the minimum Hamilton circuit.

A. Minimum Hamilton circuit is W ? X ? Z ? Y ? W; weight = 213 B. Minimum Hamilton circuit is W ? X ? Y ? Z ? W; weight = 220 C. Minimum Hamilton circuit is W ? Z ? X ? Y ? W; weight = 220 D. Minimum Hamilton circuit is W ? Y ? X ? Z ? W; weight = 217

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Solve the equation.Solve 2 tan ? - 4 = 9 for ?, where ? is an acute angle. Approximate ? to the nearest tenth of a degree.

A. 81.3° B. 84.8° C. 42.8° D. 68.2°

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