Express the following in interval notation.
A. (-?, 0] ? (4, ?)
B. (0, 4]
C. (-?, 0) ? (4, ?)
D. (-?, 0) ? [4, ?)
Answer: D
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Determine whether the given point is in the solution set to the given system.(-3, -1, 4)2x - 2y - 3z = -164x - 3y + 3z = 3 x + y - 5z = -24
A. Yes B. No
Refer to the weighted voting system 
and the Banzhaf definition of power. (The five players will be called P1, P2, P3, P4, and P5.)In this voting system,
A. P3 and P4 have the same power. B. P3 has twice as much power as P4. C. P3 has four times as much power as P5. D. P3 has three times as much power as P4. E. none of these
Evaluate the integral.
A. 
B. 
C. 0
D. 
Solve the problem.One rope pulls a barge directly east with a force of 86 N, and another rope pulls the barge directly north with a force of 87 N. Find the magnitude of the resultant force acting on the barge.
A. 7482 N B. 1 N C. 173 N D. 122 N