Solve using the simplex method.Find x1 ? 0 and x2 ? 0 such that x1 + x2 ? 25 x1 + 2x2 ? 15 2x1 + x2 ? 30and z = 4x1 + 2x2 is maximized.
A. x1 = 15, x2 = 0, z = 60
B. x2 = 30, x1 = 0, z = 60
C. x1 = 25, x2 = 0, z = 100
D. x1 = 15, x2 = 10, z = 80
Answer: A
Mathematics
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Complete the square for the binomial. Then factor the resulting perfect square trinomial.x2 + 
x
A. x2 + 
x + 144 = (x + 12)2
B. x2 + 
x + 
= 
2
C. x2 + 
x + 
= 
2
D. x2 + 
x + 
= 
2
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Factor completely. If the polynomial cannot be factored, say it is prime.9x2 - 39x - 30
A. 3(3x + 2)(x - 5) B. (9x + 6)(x - 5) C. prime D. 3(3x - 2)(x + 5)
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Evaluate the expression. 
A. 
B. 126
C. 3024
D. 15120
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Solve the problem.The shape of a plexiglass windshield is triangular with a height of 2.4 ft and base of 5.4 ft. What is the cost of the windshield if the plexiglass costs $1.40 per ft2?
A. $18.14 B. $6.48 C. $9.07 D. $4.54
Mathematics