Tell whether the expression is a monomial. If it is, name the variable(s) and coefficient, and give the degree of the monomial.- 
A. Monomial; variables x, y; coefficient -5; degree 6
B. Monomial; variables x, y; coefficient -5; degree 3
C. Monomial; variables x, y; coefficient -5; degree 9
D. Not a monomial
Answer: D
Mathematics
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Evaluate the expression.2x2 + 4y, where x = 5 and y = -6
A. 92 B. 26 C. 76 D. -348
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Find the absolute value of the complex number.-9
A. -9 B. -81 C. 81 D. 9
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Simplify the complex fraction.
A. 
B. 
C. 
D. 
Mathematics
Find the center, foci, and vertices of the ellipse.
+ 
= 1
A. center at (0, 0)
foci at (-6, 0) and (6, 0)
vertices at (-36, 0), (36, 0)
B. center at (0, 0)
foci at (0, -4) and (0, 4)
vertices at (0, -16), (0, 16)
C. center at (0, 0)
foci at (- 2
, 0) and (2
, 0)
vertices at (-6, 0), (6, 0)
D. center at (0, 0)
foci at (0, - 2
) and (0, 2
)
vertices at (0, -6), (0, 6)
Mathematics