Give the domain and range of the function.g(x) = x2 - 6
A. Domain: [0, ?); Range: [0, ?)
B. Domain: [6, ?); Range: all real numbers
C. Domain: all real numbers; Range: [2, ?)
D. Domain: all real numbers; Range: [-6, ?)
Answer: D
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Write the fraction or mixed number as a percent. If necessary, round the percentage to the nearest tenth.
A. 37% B. 500% C. 7.4% D. 74%
Find the points of inflection.f(x) = 
x4 - 3x3 + 12
A. (0, 12), (3, -28.5) B. (0, 12), (3, -27) C. (3, -28.5) D. (3, 0)
Solve the problem.Suppose that the labor cost for a building is approximated by 
where x is the number of days of skilled labor and y is the number of days of semiskilled labor required. Find the x and y that minimize cost C.
A. x = 24, y = 60 B. x = 40, y = 40 C. x = 20, y = 24 D. x = 20, y = 20
Use the Binomial Theorem to expand the binomial and express the result in simplified form.(x + 4)5
A. x5 + 20x4 + 160x3 + 640x2 + 1280x + 4 B. x5 + 20x4 + 320x3 + 1280x2 + 1280x + 4 C. x5 + 20x4 + 320x3 + 1280x2 + 1280x + 1024 D. x5 + 20x4 + 160x3 + 640x2 + 1280x + 1024