Use periodic properties of the trigonometric functions to find the exact value of the expression.cos 

A.
B. - 
C.
D. - 

Answer: D

Mathematics

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Find a set of polar coordinates for the point for which the rectangular coordinates are given.(-2, -2)

A.
B.
C.
D.

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Round to the indicated place value.Round to the nearest whole number: 39.3

A. 38 B. 39 C. 40

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Use the property of proportions to determine whether the pair of fractions is equivalent. and 

A. equivalent B. not equivalent

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Solve the problem.Find an equation in general form for the line graphed on a graphing utility. 

A. x + 2y = -2
B. y = -2x - 1
C. y = - x - 1
D. 2x + y = -1

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Mathematics