Solve the problem.If g(x) = x2 - 2x - 3 , solve g(x) ? 0.
A. [-1, 3]
B. (-?, -1]
C. (-?, -1] or [3, ?)
D. [3, ?)
Answer: A
Mathematics
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Solve the problem.A photographer points a camera at a window in a nearby building forming an angle of 42° with the camera platform. If the camera is 52 m from the building, how high above the platform is the window, to the nearest hundredth of a meter?
A. 1.11 m B. 0.9 m C. 46.82 m D. 57.75 m
Mathematics
Use the imaginary unit to write the expression.
A. 4
B. -4
C. -4i
D. 4i
Mathematics
Solve the equation after making an appropriate substitution.x2/3 + 2x1/3 - 8 = 0
A. {-4, 2} B. {-2, 4} C. {-8, 64} D. {-64, 8}
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Solve.A bag contains 3 red marbles, 9 blue marbles, and 5 green marbles. What is the probability of choosing a blue marble when one marble is drawn?
A. 
B. 
C. 
D. 
Mathematics