If A denotes the area of the sector of a circle of radius r formed by the central angle ?, find the missing quantity. If necessary, round the answer to two decimal places.r = 16 inches, ? = 90°, A = ?
A. 401.92 in2
B. 200.96 in2
C. 25.12 in2
D. 12.56 in2
Answer: B
Mathematics
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Solve the problem.Find the volume generated by revolving about the y-axis the area bounded by the curves 2x2 - y2 = 18, x = 8
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics
Use the information given in the table to solve the problem.The table gives the Consumer Price Index for selected years.
What is the percent change (to the nearest tenth of a percent) in prices from 1960 to 1975?
A. 122.8 % B. 114 % C. 112.8 % D. 117 %
Mathematics
Simplify.
? 
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.-20.4 - x = 10.8
A. {-9.6} B. {31.2} C. {9.6} D. {-31.2}
Mathematics