Find the area of the specified region.Inside one loop of the lemniscate r2 = 7 cos 2?
A. 
B. 
C. 7
D. 14
Answer: B
Mathematics
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A school board has determined that there should be 4 teachers for every 50 students. How many teachers are needed for an enrollment of 2,750 students?
A. 245 teachers B. 209 teachers C. 220 teachers D. 204 teachers E. 163 teachers
Mathematics
Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. 
B. 
C. 
D. 
Mathematics
Perform long division.
A. x2 + 5
B. x2 + 5 + 
C. x2 + 5x + 
D. x2 + 5x + 2 + 
Mathematics
Solve the problem.A quantity, its 
, its 
, and its 
, added together, become 11. What is the quantity?
A. 
B. 
C. 
D. 
Mathematics