The initial tableau of a linear programming problem is given. Use the simplex method to solve the problem. 
A. Maximum at 6 for x3 = 2, s2 = 6
B. Maximum at 7 for x2 = 2, s1 = 2
C. Maximum at 21 for x2 = 2, x3 = 6
D. Maximum at 18 for x3 = 6, s2 = 2
Answer: D
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Do the operation and express the answer in 
form.
?
What will be an ideal response?
Perform the indicated operations and simplify the result. Leave the answer in factored form.
- 
A. 0 B. 6x C. 9 D. 81
Write a percent for both the shaded and unshaded parts of the figure.
A. 0.7% shaded; 99.3% unshaded B. 70% shaded; 30% unshaded C. 70% shaded; 3% unshaded D. 7% shaded; 93% unshaded
The consumer price index (CPI) is calculated by averaging the prices of various items after assigning a weight to each item. The following table gives the consumer price indexes for selected years from 1940 through 2002, reflecting buying patterns of all urban consumers. Find an equation that models these data and use it to predict the consumer price index in 2015. Use the model to predict the consumer price index in 2015. Round your answer to two decimal places. ? Year Consumer Price Index Year Consumer Price Index 1940 1950 1960 1970 14 24.1 29.6 38.8 1980 1990 2000 2002 82.4 130.7 172.2 179.9 ? Source:U.S. Bureau of the Census ?
A. 76.47 B. 129.14 C. 169.33 D. 216.39 E. 326.77