Use the graph of the parabola to determine the coordinates of the vertex.

A. (-2, 8)
B. (2, 0)

C. (2, -8)
D. (-2, 0)


Answer: B

Mathematics

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A.

B.

C.

D.

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Find the radian measure of the angle ?.The length of the circular arc associated with ? is 21 on a circle of radius .

A. 63
B. 21
C. 28
D.  

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Find the following root if it exists.

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