Match the given function to its graph.1) y = sin (x)2) y =  cos x3) y =  sin x 4) y = cos (x)A B 

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A. 1A, 2B, 3C, 4D

B. 1A, 2C, 3D, 4B

C. 1B, 2D, 3C, 4A

D. 1A, 2D, 3C, 4B

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Answer: C

Mathematics

Evaluate the integral by changing the order of integration in an appropriate way.

A.
B.
C.
D.

Evaluate the cylindrical coordinate integral.

A. 34
B. 68
C.
D.

Using the horizontal-line test, determine whether the function is one-to-one.

A. one-to-one B. not one-to-one

Solve the problem.You have 108 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area.

A. length: 54 ft, width: 27 ft B. length: 27 ft, width: 27 ft C. length: 81 ft, width: 27 ft D. length: 54 ft, width: 54 ft