Use duality to solve the problem.Minimizew = 5y1 + 2y2subject to: y1 + y2 ? 19.5 2y1 + y2 ? 24 y1 ? 0, y2 ? 0
A. 30.5
B. 48
C. 54
D. 31.5
Answer: B
Mathematics
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A. 
B. - 
C. 
D. - 
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Find a set of polar coordinates for the point for which the rectangular coordinates are given.(-4
, 4)
A. 
B. 
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Solve by the substitution method.0.4x + 0.7y = 2.3 x - 0.9y = -7.5
A. {(-0.3, 0.5)} B. ? C. {(-3, 5)} D. {(5, -3)}
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Use the order of operations to simplify the expression.
? 
+ 
? 
A. 
B. 
C. 
D. 
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