Write the number as the product of a real number and i.-
A. -3i
B. -3
C. 3
D. 3i
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. xi + yj B. xi - yj C. -yi + xj D. yi - xj
Mathematics
Find the equilibrium solution of the equation. Use a sketch of the direction field for 
to determine whether the equilibrium is stable.y'(t) + 2u + 6 = 0
A. y = 
; unstable
B. y = - 
; stable
C. y = 3; stable
D. y = -3; unstable
Mathematics
Multiply.(-6)(10)
A. -600 B. -160 C. -70 D. -60
Mathematics
Find the net cost. Round to the nearest cent.$1,088 less 10/10/5
A. $1,063.00 B. $544.00 C. $837.22 D. $816.00
Mathematics