Find the domain of the expression.
?
?
A. All real numbers x such that x ? 4
B. All real numbers x such that x ? 8
C. All nonnegative real numbers x such that x ? 16
D. All real numbers x
E. All real numbers x such that x ? ±4
Answer: E
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Write the improper fraction as a mixed or whole number.- 
A. -4
B. -5
C. -6
D. -5
A dart is thrown randomly and sticks on the circular dart board shown. Assume that all sectors are the same size and that the dart does not land on a border between shaded areas.
Find the probability that the dart lands on sector number 5 or sector number 9.
A. 
B. 
C. 
D. 
Factor the polynomial completely. If the polynomial is prime, so state.x3 - 10x - 3x2
A. x(x + 5)(x - 2) B. x(x - 5)(x - 2) C. x(x + 5)(x + 2) D. x(x - 5)(x + 2)
Rewrite the objective function into a maximization function.Minimizew = y1 + 2y2 + 3y3subject to:4y1 + 3y2 + y3 ? 25 y1 + 2y2 + 4y3 ? 37 y1 ? 0, y2 ? 0, y3 ? 0
A. Maximize z = -x1 - 2x2 - 4x3 ? 37 B. Maximize z = -4x1 - 3x2 - x3 ? 25 C. Maximize z = x1 + 2x2 + 3x3 - x4 D. Maximize z = -x1 - 2x2 - 3x3