Write the expression in interval notation. Graph the interval.-4 < x < -2
A. (-4, -2)
B. (-4, -2]
C. [-4, -2]
D. [-4, -2)
Answer: A
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Evaluate.8 ? 2 + 18 ÷ (8 - (3 + 2))
A. 24 B. 21 C. 22 D. 23
Solve the problem.Find the centroid of the region in the first quadrant bounded by the curve y = 9 cos x and the axes.
A. 
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, 
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B. 
= 
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C. 
= 
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D. 
= 
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Provide an appropriate response.A small company allows its employees to use "flex-time" to decide whether to work full-time, half-time, or quarter-time. Of its 52 employees, 15 choose to work full-time, 17 are parents with small children who choose to work half-time, and 20 are students who work quarter-time after school and on Sundays. Which measure of central tendency would be best to use for measuring the average number of hours worked by the employees?
A. Mean B. Weighted mean C. Median D. Mode
Factor completely. If prime, so state.20x2 + 24x + 15x + 18
A. (4x + 3)(5x + 6) B. (20x + 3)(x + 6) C. (20x - 3)(x - 6) D. (4x - 3)(5x - 6)