Maximize the objective function R, subject to the given constraints.R = 2x + 5y3x + 2y ? 6-2x + 4y ? 8x ? 0, y ? 0
A. R = 
B. R = 
C. R = 10
D. R = 19
Answer: A
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Solve the problem.Find an equation for the level curve of the function f(x, y) = 
dt that passes through the point 
.
A. y2 - x2 = 24 B. y2 - x2 = 26 C. y2 - x2 = -24 D. y2 + x2 = 26
Perform the operations indicated. Write your answer in simplest form.128 ÷ (-8)
A. -26
B. - 
C. -16
D. 16
Determine the family of angles for which the following angle belongs, sketch the angle, and then determine the angle of least positive measure, ?C, coterminal with the given angle.? = -1215°
A. 
family; ?C = 240°
B. quadrantal family; ?C = 180°
C. quadrantal family; ?C = 270°
D. 
family; ?C = 225°
Identify the graph of the equation as a parabola, hyperbola, ellipse, or circle.4y2 + 25x2 = 100
A. hyperbola B. parabola C. ellipse D. circle