Consider the following simplex tableau that is the final tableau in a problem to minimize -x + 2y.
What is the minimum value of -x + 2y?
A. -10
B. 4
C. -4
D. 0
E. none of these
Answer: C
Mathematics
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Use implicit differentiation to find dy/dx.x7 = cot y
A. - 
B. 
C. - 
D. 
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Solve the problem.The perimeter of a rectangle is 16 cm. The length is 4 cm longer than the width. What are the length and width of the rectangle?
A. Length: 7 cm; width: 3 cm B. Length: 4 cm; width: 2 cm C. Length: 6 cm; width: 2 cm D. Length: 8 cm; width: 4 cm
Mathematics
Solve the equation.
+ 
x = 
A. 
B. 
C. 
D. 
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Evaluate the composition of functions.Let f(x) = 5x + 4 and g(x) = x + 8. Find (f ? g)(2).
A. 24 B. 22 C. 140 D. 54
Mathematics