Find the root.
A. 81
B. 27
C. Not real number
D. 9
Answer: D
Mathematics
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Divide numerator and denominator by the highest power of x in the denominator to find the limit.
A. 
B. 0
C. ?
D. 
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. -14 B. -5 C. 0 D. 1
Mathematics
Determine the real solutions to the system of nonlinear equations.y = -x2 + 3x2 + y2 = 5
A. (1, 2), (-1, 2) B. (2, -1), (-2, -1) C. (1, 4), (4, 19) D. (2, -1), (1, 2), (-1, 2), (-2, -1)
Mathematics
Let v and w be two vectors in the plane with given magnitudes. The angle between v and w is ?. Find the expression. Round the answer to the nearest tenth.
= 12, = 14, ? = 39°
Find the angle between v + w and w
A. 21.1° B. 18.0° C. 58.1° D. 81.9°
Mathematics