Match the function with its graph.1) y = sin  2) y = cos 3) y = sin 4) y = cos A)B) 

width="200" />  C) D) 



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

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

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

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

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Answer: A

Mathematics

Solve the problem.If 5 apples in a barrel of 25 apples are rotten, what is the expected number of rotten apples in a random sample of 2 apples?

A.
B. 1
C.
D.

Suppose the point (2, 4) is on the graph of y = f(x). Find a point on the graph of the given function.f(x) + 2

A. (0, 4) B. (2, 6) C. (4, 4) D. (2, -2)

Rationalize the denominator. ?

What will be an ideal response?

Solve by completing the square to obtain exact solutions.x2 + 8x = 3

A. -1 ± 
B. 4 + 
C. -4 ± 
D. -4 ± 2