Use the given trigonometric function value of ? to find the requested trigonometric function value of the acute angle ?. Rationalize the denominators where necessary.csc ? = 
Find sin ?.
A. -7
B. 
C. 7
D. - 
Answer: C
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Solve the problem.Find the center of mass of the region of density 
bounded by the paraboloid 
and the xy-plane.
A. 
= 0, 
= 0, 
= 
B. 
= 0, 
= 0, 
= 
C. 
= 0, 
= 0, 
= 10
D. 
= 0, 
= 0, 
= 5
Find the center and radius of the circle.x2 + y2 = 36
A. (6, 6), r = 36 B. (0, 6), r = 36 C. (0, 0), r = 36 D. (0, 0), r = 6
Find the limit.
(1 + x6)1/x
A. ? B. 1 C. 6 D. 0
Estimate the answer from the table or graph.The number of students at Alder High School who studied foreign languages in different years is shown in the bar graph. What is the total number of students who studied a foreign language in 2012? (Assume no student studied two foreign languages).
2006200820102012Year
A. 90 students B. 150 students C. 130 students D. 170 students