Introduce slack variables as necessary, and write the initial simplex tableau for the problem.Find x1 ? 0 and x2 ? 0 such that x1 + x2 ? 543x1 + x2 ? 198and z = 2x1 + x2 is maximized. 
A. 
B. 
C. 
D. 
Answer: C
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Find the ratio.
15 mg to 4 mg
Solve the problem.The number of VHS movie rentals has declined since the year 2000 due to the popularity of DVDs, as the following table shows. Use a graphing calculator to determine the exponential regression equation that best fits the VHS rental data. Let x represent the number of years since 2000.
A. y = 9.75(0.08197)x B. y = 9.79(0.08213)x C. y = 9.75(0.8197)x D. y = 9.79(0.8213)x
Solve the problem.The Human Resources department of a medium-sized corporation reported that the average age of its employees is 
years and the average number of hours each employee worked each week is 
hours. Round each of these numbers to the nearest ten.
A. 60 years; 60 hours B. 50 years; 60 hours C. 60 years; 50 hours D. 50 years; 50 hours
Using the horizontal-line test, determine whether the function is one-to-one.
A. one-to-one B. not one-to-one