Find the maximum value of the objective function and where it occurs, subject to the indicated constraints.
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Objective function:
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z = 9x + 5y
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Constraints:
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0 ? x ? 60
0 ? y ? 45
5x + 6y ? 420
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A. Maximum at (0, 45): 225
B. Maximum at (0, 0): 0
C. Maximum at (30, 45): 495
D. Maximum at (60, 20): 640
E. Maximum at (60, 0): 540
Answer: D
Mathematics
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