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. - 
B. 
C. xi + yj
D. 
Answer: D
Mathematics
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Solve the problem.A building has an entry with the shape of a parabolic arch 34 feet high and 20 feet wide at the base. Find an equation for the parabola if the vertex is placed at the origin of the coordinate system.
A. x2 = -2.9y B. x2 = -11.8y C. y2 = -11.8x D. y2 = -2.9x
Mathematics
Provide an appropriate response.Choose the expression that is equivalent to the following: (8x + 2y)(9y + 3x)
A. 11x + 11y B. (8x + 3x)(2y + 9y) C. (8x + 2y)(3y + 9x) D. (8x + 2y)(3x + 9y)
Mathematics
Simplify the expression.5-3
A. 
B. -125
C. 125
D. 
Mathematics
Use the properties of equality to solve the equation.-4z = - 
A. 
B. 
C. - 
D. - 
Mathematics