Write the fraction in decimal notation.
A. 0.115
B. 0.015
C. 0.215
D. 0.125
Answer: D
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Solve the problem.Find a field G = P(x, y)i + Q(x, y)j in the xy-plane with the property that at any point (a, b) ? (0, 0), G is a unit vector pointing away from the origin.
A. 
B. xi + yj
C. - 
D. 
Use the two steps for solving a linear programming problem to solve the problem.A doctor has told a sick patient to take vitamin pills. The patient needs at least 28 units of vitamin A, at least 7 units of vitamin B, and at least 20 units of vitamin C. The red vitamin pills cost 
each and contain 6 units of A, 1 unit of B, and 2 units of C. The blue vitamin pills cost 
each and contain 4 units of A, 1 unit of B, and 5 units of C. How many pills should the patient take each day to minimize costs?
A. 5 red and 2 blue B. 7 red and 0 blue C. 2 red and 5 blue D. 6 red and 1 blue
The question(s) that follow refer to the problem of finding the minimum spanning tree for the weighted network shown below.
Which of the following edges of the given network are not part of the minimum spanning tree?
A. BC B. BF C. GH D. AB E. none of these
Solve the problem.A firm making toaster ovens finds that the total cost, C(x), of producing x units is given by C(x) = 25x + 640.The revenue, R(x), from selling x units is determined by the price per unit times the number of units sold, thus R(x) = 35x.Find and interpret (R - C)(77).
A. $5260 profit, income exceeds cost B. -$130 loss, cost exceeds income C. $130 profit, income exceeds cost D. $141 profit, income exceeds cost