Solve the inequality.x2 + 2x ? 0
A. [-2, 0]
B. [0, 2]
C. (-?, 0] or [2, ?)
D. (-?, -2] or [0, ?)
Answer: A
Mathematics
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Solve. x2 - 3y2 = 14x2 + 3y2 = 19
A. (1, 2), (-1, 2), (1, -2), (-1, -2) B. (2, 1), (2, -1), (-2, 1), (-2, -1) C. (2, 1) and (-2, -1) D. (-1, 2) and (1, -2)
Mathematics
Use the frequency table below to answer the following question(s).
An outlier of a data set is defined as any data point more than 1.5 times the interquartile range above the third quartile or below the first quartile. The number of outliers in this data set is
A. 5. B. 10. C. 0. D. 20. E. none of these
Mathematics
Determine the approximate area of the given circle, using 3.14 for ?. Round the answer to the nearest hundredth.
A. 78.5 ft2 B. 1962.5 ft2 C. 157 ft2 D. 490.63 ft2
Mathematics
Simplify the expression.
3
A. 
B. 
C. 
D. 
Mathematics