Solve the problem.Find the minimum possible value of f = 2x + 4y subject to the following constraints: 
A. 0
B. 20
C. 10
D. 30
Answer: B
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Find all real numbers that satisfy the equation.sin x = - 
A. 
B. 
C. 
D. 
A hypothetical management science problem requires us to find the cheapest "supercircuit" in a graph. Three algorithms are available: Algorithm 1, Algorithm 2, and Algorithm 3.Algorithm 1 always produces the cheapest supercircuit. The amount of time it takes to carry out Algorithm 1 doubles every time we increase the number of vertices by one. Algorithm 1 is
A. an approximate and efficient algorithm. B. an optimal and inefficient algorithm. C. an approximate and inefficient algorithm. D. an optimal and efficient algorithm. E. none of these
Solve the equation.
+ 4 = 
- 3
A. 
B. 
C. 
D. 
Factor the sum or difference of two cubes.27 - 125x3
A. (3 - 5x)(9 + 15x + 25x2) B. (27 - 5x)(1 + 15x + 25x2) C. (3 - 5x)(9 + 25x2) D. (3 + 5x2)(9 - 15x + 25x2)