Simplify.
A. 
B. - 
C. 
D. - 22
Answer: D
Mathematics
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Solve the problem.Find a field G = P(x, y)i + Q(x, y)j in the xy-plane with the property that at any point (a, b) ? (0, 0), G is a unit vector pointing away from the origin.
A. xi + yj
B. 
C. - 
D. 
Mathematics
Multiply the polynomials using the FOIL method. Express the answer as a single polynomial in standard form.(3x + 10y)(-3x + 7y)
A. -9x2 - 30xy + 70y2 B. -9x2 - 9xy - 9y2 C. -9x2 + 21xy + 70y2 D. -9x2 - 9xy + 70y2
Mathematics
Express the radical in simplified form. Assume that all variables represent positive real numbers.- 
A. -5k3q4
B. -5k3q4
C. 5k3q4
D. 5k7q8
Mathematics
For the given polynomial function, find the requested value.f(x) = -4x5 - 4x4 + 6x3 - x2; find f(-2)
A. 12 B. 7 C. 8 D. 41
Mathematics