Determine the domain of the function. Express your answer in interval notation.f(x) = 
A. (-?, ?)
B. (-?, 4)
C. [4, ?)
D. (-?, -4)
Answer: A
Mathematics
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Multiply and simplify.(9 cot ? - 9 csc ?)(9 cot ? + 9 csc ?)
A. 9(cot2? + csc2?) B. 81 C. -81 D. 81(cot2? + csc2?)
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Which of the following products would be considered the BEST complementor to a personal computer?
A. ink cartridges B. software and games C. premium photo paper D. miniature black and white television
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Solve.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Refer to the figure and determine the height, h, of the outside walls.A = 3 m
A. 64 m B. 13 m C. 3.6 m D. 8 m
Mathematics
Use a calculator to approximate the square root to the nearest thousandth.
A. 6.250 B. 6.245 C. 6.242 D. 39.000
Mathematics