Find the root. Assume that variables represent any real number.- 
A. 
B. -|x|
C. x
D. -x
Answer: B
Mathematics
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Find the vertices and foci of the ellipse.36x2 + 100y2 = 3600
A. Vertices: (±36, 0); Foci: (±8, 0) B. Vertices: (0, ±10); Foci: (0, ±8) C. Vertices: (0, ±36); Foci: (0, ±10) D. Vertices: (±10, 0); Foci: (±8, 0)
Mathematics
Estimate the answer to the problem.A mobile library has 1078 books in its collection. If there are 22 shelves in the library, then how many books, on average, are stacked on each shelf?
A. 60 books B. 46 books C. 55 books D. 50 books
Mathematics
Find the derivative of the function.
?
?
A. 
B. 
C. 
D. 
Mathematics
Find the limit of the sequence (if it exists).
?
?
A. 
B. 
C. 
D. 
E. does not exist
Mathematics