Use duality to solve the problem.Minimizew = y1 + 4y2 + 3y3subject to:3y1 + 2y2 + y3 ? 70 2y1 + 2y3 ? 50 y1 ? 0, y2 ? 0, y3 ? 0
A. 90
B. 20
C. 25
D. 165
Answer: C
Mathematics
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Find the slope 
and an equation of the tangent line to the graph of the function 
at the point 
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?
?
A. 
; 
B. 
; 
C. 
; 
D. 
; 
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Use the graph of f to sketch a graph of the inverse of f using a dashed curve.
A. 
B. 
C. 
D. 
Mathematics
Find the value of the variable that satisfies the equation.-6x + 8 = -2 - 10x
A. x = - 
B. x = 
C. x = - 
D. x = - 
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Solve the problem.A gear with a radius of 16 centimeters is turning at 
radians/sec. What is the linear speed at a point on the outer edge of the gear?
A. 
cm/sec
B. 
cm/sec
C. 
cm/sec
D. 176? cm/sec
Mathematics