Translate to a proportion. Do not solve.42% of what is 13?

A.  = 
B.  = 
C.  = 
D.  = 


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 , - 3 ? x ? 3, about the x-axis (dimensions are in feet). How many cubic feet of fuel will the tank hold to the nearest cubic foot?

A. 3 B. 10 C. 13 D. 5

Mathematics

Find the absolute extreme values of each function on the interval.f(x) = csc x, -  ? x ? 

A. Maximum value of 0 at x = -?; minimum value of -1 at x = ? B. Maximum value: does not exist; minimum value: does not exist C. Maximum value of 1 at x = ?; minimum value of -1 at x = ? D. Maximum value of -1 at x = ?; minimum value of 1 at x = 0

Mathematics

Perform the indicated operation. Simplify the result, if possible. ? 

A.
B.
C.
D. 4(x + 6)

Mathematics

Find the perimeter of the figure. 11

A. 36
B. 18
C. 18
D. 36

Mathematics