Find the derivative.y = 
+ 
A. y ' = 2 cos x - csc2 x
B. y ' = 2 csc x cot x - sec2 x
C. y ' = - 2 csc x cot x + sec2 x
D. y ' = 2 csc x cot x - csc2 x
Answer: C
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Solve. Use ? ? 3.14 and round to the nearest hundredth.The sound of an explosion at a fireworks factory was heard 27 miles away in every direction. How many square miles are in the area where people heard the explosion?
A. 9156.24 ft2 B. 169.56 ft2 C. 84.78 ft2 D. 2289.06 ft2
Solve the problem.Select the equation that describes the graph shown.
A. y = (x + 3)2 + 2 B. y = x2 - 3 C. y = (x + 2)2- 3 D. y = (x - 3)2 + 2
Find any intercepts. Then graph the linear equation.-5x - 10y = 30
A. (6, 0); (0, 3)
B. (-6, 0); (0, -3)
C. (6, 0); (0, -3)
D. (-6, 0); (0, 3)
Find the exact value of the expression.sin 15°
A. 
B. - 
C. 
D. - 