Provide an appropriate response.Find the opposite of -12.
A. - 
B. 0
C. -12
D. 12
Answer: D
Mathematics
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Solve the problem.Find the moment of inertia about the y-axis of the thin semicircular region of constant density 
bounded by the x-axis and the curve 
.
A. 
?
B. 320?
C. 160?
D. 
?
Mathematics
Solve problems using a calculator.The revenue of a construction company for the year is $6,682,957, and the total expenses are $5,995,974. Find the difference, or profit, for that year.
A. $686,985 B. $686,938 C. $686,984 D. $686,983
Mathematics
Refer to the figure. 
Write the bearings of the points H and I.
A. H: N 20° W I: N 62° W B. H: N 80° W I: N 62° W C. H: N 20° W I: N 28° W D. H: N 80° W I: N 28° W
Mathematics
Graph the function. Show at least one period.y = 4 sin(-2x - ?)
A. 
B. 
C. 
D. 
Mathematics