Convert the angle in radians to degrees.

A. 160°
B. 405°
C. 80?°
D. 810°


Answer: B

Mathematics

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Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve  - 2 ? x ? 2, about the x-axis (dimensions are in feet). How many cubic feet of fuel will the tank hold to the nearest cubic foot?

A. 2 B. 3 C. 8 D. 7

Mathematics

Provide an appropriate response.If f(x) = 1, f(x) = -1, and f(x) is an even function, which of the following statements are true?I. f(x) = -1II. f(x) = -1III. f(x) does not exist.

A. II and III only B. I and III only C. I and II only D. I, II, and III

Mathematics

Find the sum of the finite geometric sequence.



a. 43
b. 22
c. 127
d. 63

Mathematics

Find the exact value by using a half-angle identity.cos 

A.  
B. -  
C. -  
D.  

Mathematics