Use graphical methods to solve the linear programming problem.Minimize z = 2x + 4y subject to: x + 2y ? 10 3x + y ? 10 x ? 0 y ? 0
A. Minimum of 20 when x = 2 and y = 4
B. Minimum of 20 when x = 10 and y = 0
C. Minimum of 0 when x = 0 and y = 0
D. Minimum of 20 when x = 2 and y = 4, as well as when x = 10 and y = 0, and all points in between
Answer: D
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Provide an appropriate response.Change 0.45° to equivalent minutes and seconds. Round to the nearest second if necessary.
A. 27' B. 1,620' C. 105' D. 54'
Find the domain of the rational expression.
A. {x|x is a real number and x ? 1 and x ? 2} B. {x|x is a real number and x ? 1} C. {x|x is a real number} D. {x|x is a real number and x ? 2}
Use the rational zero theorem, Descartes's rule of signs, and the theorem on bounds as aids in finding all real and imaginary roots to the equation.x3 - 75x - 250 = 0
A. -5, 5, 10 B. -10, -5, 5 C. -5, -5, -10 D. -5, multiplicity 2; 10
Solve by the method of your choice.2x2 + xy - y2 = 3x2 + 2xy + y2 = 3
A. 
B. 
C. 
D. 