The data in the figure below represents the annual salaries of 120 professional mathematicians.
Sue, a professional mathematician, makes $80,000 per year. In what percentile does this place her?
A. 92nd percentile
B. 80th percentile
C. 71st percentile
D. 84th percentile
E. none of these
Answer: D
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Solve the problem.Find the moment of inertia about the x-axis of the lamina bounded by the coordinate axes and the line 
if 
.
A. Ix ? 
B. Ix ? 864
C. Ix ? 
D. Ix ? 
Find the total area of the region between the curve and the x-axis.y = (x + 1)
; 1 ? x ? 9
A. 268
B. 644
C. 
D. 
Which of the following statements concerning marketable securities is correct?
A. Marketable securities are extremely liquid investments. B. Marketable securities generally are long-term investments. C. Marketable securities provide higher yields than the firm's other investments. D. The primary purpose for holding marketable securities is to support long-term operations. E. Marketable securities are held by a firm that normally has cash deficiencies.
Solve the problem.A triangle drawn on a map has sides of lengths 9 cm, 11 cm, and 13 cm. The shortest of the corresponding real-life distances is 120 km. Find the longest of the real-life distances. Round to the nearest tenth.
A. 183.3 km B. 146.7 km C. 173.3 km D. 136.7 km