Solve the problem.Which of the following is a gnomon to a disk of radius 5?
A. A circular disk of radius 10
B. A circular ring with inner radius 5 and outer radius 10
C. A circular disk of radius 5
D. Circular disks of radius 5 do not have gnomons
E. A circular ring with inner radius 1 and outer radius 5
Answer: B
Mathematics
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Estimate the magnitude of the error involved in using the sum of the first four terms to approximate the sum of the entire series.
A. 
< 4.37 × 10-2
B. 
< 3.28 × 10-1
C. 
< 1.02 × 10-1
D. 
< 6.55 × 10-2
Mathematics
For the compound inequality, give the solution set in both interval and graph forms.x - 3 > 3 or x + 3 < 2
A. (-?, -1) ? (6, ?)
B. (-?, 1) ? (6, ?)
C. (-1, ?)
D. (-?, 6)
Mathematics
Solve the proportion and check.
= 
A. 
B. 1394
C. 4
D. 42
Mathematics
Solve the equation.x2 = -18x - 81
A. {-9, 9} B. {-9} C. {0, 9} D. {9}
Mathematics