Verify that the values of the variables listed are solutions of the system of equations.
x = -4, y = 5
A. solution
B. not a solution
Answer: A
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 vector of magnitude 
tangent to the circle x2 + y2 = a2 + b2 and pointing in the clockwise direction.
A. -yi + xj B. xi - yj C. xi + yj D. yi - xj
Mathematics
Use the square root property to solve the quadratic equation.5x2 - 25x + 42 = 0
A. 
B. no real solution
C. 
D. 
Mathematics
Perform the indicated operation and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics
Multiply. Assume that all variables represent nonnegative real numbers.(
+ 5)(
- 5)
A. 36
B. 11 - 2
C. -14
D. 6
Mathematics