Use the two-stage method to solve.Maximizez = 5x1 + 4x2subject to:x1 + 2x2 = 15 x1 + x2 ? 12 2x1 + x2 ? 30 x1 ? 0, x2 ? 0
A. Maximum is 63 for x1 = 11, x2 = 2
B. Maximum is 75 for x1 = 15, x2 = 0
C. Maximum is 60 for x1 = 0, x2 = 15
D. Maximum is 57 for x1 = 9, x2 = 3
Answer: B
Mathematics
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Round off the approximate number as indicated.0.9999 3 significant digits
A. 1.00 B. 1 C. 1.0 D. 0.999
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Write as a decimal.84.72%
A. 0.8472 B. 8.472 C. 0.08472 D. 0.8372
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Subtract. Check by adding.7020 - 3362
A. 4342 B. 3658 C. 5368 D. 4768
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Add. Simplify, if possible.
+ 
A. 
B. 
C. - 2x - 
D. 
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