Select the first five terms of the sequence. (Assume that n begins with 1.)
?

?

A.

?


B.

?


C.

?


D.

?


E.

?



Answer: E

Mathematics

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The centroid of a triangle lies at the intersection of the triangle's medians, because it lies one-third of the way from each side towards the opposite vertex. Use this result to find the centroid of the triangle whose vertices appear as following.(-2, 0), (2, 0), (0, 7)

A. (0, )
B. (0, 7)
C. (0, )
D. (0, )

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Find the limit.

A.
B.
C. 2
D. 0

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Tell whether the graph of the function opens up or down.P(x) = (x + 2)2

A. down B. up

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The graph of an ellipse is given. Find the standard form of the equation of the ellipse. 

A.  +  = 1
B.  +  = 1
C.  +  = 1
D.  -  = 1

Mathematics