Introduce slack variables as necessary and write the initial simplex tableau for the problem.Maximize z = 4x1 + 2x2 subject to: 2x1 + x2 ? 20 3x1 + 5x2 ? 75 x1 ? 0, x2 ? 0 
A. 
B. 
C. 
D. 
Answer: D
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Identify the intervals where the function is changing as requested.Decreasing
A. (5, 1) B. (5, 12) C. (6, 12) D. (6, 1)
Simplify and reduce to lowest terms.
- 
A. x + 3
B. 
C. 
D. 
Solve the triangle.A = 54°, a = 17.3, b = 25.1
A. B ? 60.6°, C ? 65.4°, c ? 19.5 B. No triangles possible C. B ? 65.4°, C ? 60.6°, c ? 19.5 D. B ? 63.4°, C ? 62.6°, c ? 19.5
Solve the problem.A drug company establishes that the most effective dose of a new drug relates to body weight as shown below. Let body weight be the independent variable and drug dosage be the dependent variable. Use a graphing utility to draw a scatter diagram and to find the line of best fit. What is the most effective dosage for a person weighing 140 pounds? 
A. 13.07 mg B. 14.5 mg C. 14.64 mg D. 18.74 mg