Use the simplex method to solve the linear programming problem.Maximizez = 5x1 + 3x2subject to:2x1 + 4x2 ? 13 x1 + 2x2 ? 6withx1 ? 0, x2 ? 0
A. Maximum is 9 when x1 = 0, x2 = 3
B. Maximum is 30 when x1 = 6, x2 = 0
C. Maximum is 32.5 when x1 = 6.5, x2 = 0
D. Maximum is 18 when x1 = 0, x2 = 6
Answer: B
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Consider these figures:
Which figure above, if any, is topologically equivalent to the given figure? Identify the topologically equivalent figure by letter.A pretzel
A. A B. B C. C D. None of these
Solve the problem.A flare fired from the bottom of a gorge is visible only when the flare is above the rim. If it is fired with an initial velocity of 160 ft/sec, and the gorge is 336 ft deep, during what interval can the flare be seen? 
A. 9 < t < 13 (seconds) B. 0 < t < 3 (seconds) C. 6 < t < 10 (seconds) D. 3 < t < 7 (seconds)
Convert as indicated. Express the answer in decimal form when needed.11 feet per second to meters per second (Round to the nearest tenth.)
A. 3.4 ft/sec B. 33 ft/sec C. 12.2 ft/sec D. 3.7 ft/sec
List the terms of the expression. Then identify the coefficient of each term.6h - 8
A. 6h; 6 B. 6h, -8; 6, 8 C. 6h, -8; 6, -8 D. h; 6, -8