Answer:
good stuff
Explanation:
people these days (including me sometimes) put more energy into bad things and negative things .and its partly social media's fault.
Answer:
They should operate Mine 1 for 1 hour and Mine 2 for 3 hours to meet the contractual obligations and minimize cost.
Explanation:
The formulation of the linear programming is:
Objective function:

Restrictions:
- High-grade ore: 
- Medium-grade ore: 
- Low-grade ore: 
- No negative hours: 
We start graphing the restrictions in a M1-M2 plane.
In the figure attached, we have the feasible region, where all the restrictions are validated, and the four points of intersection of 2 restrictions.
In one of this four points lies the minimum cost.
Graphically, we can graph the cost function over this feasible region, with different cost levels. When the line cost intersects one of the four points with the lowest level of cost, this is the optimum combination.
(NOTE: it is best to start with a low guessing of the cost and going up until it reaches one point in the feasible region).
The solution is for the point (M1=1, M2=3), with a cost of C=$680.
The cost function graph is attached.
They both could be working together to find out how and when the truck driver would have fallen asleep and what could have caused him to fall asleep. Next, they could both figure out if the ammonia was in sealed containers and if not why. You could even come to the conclusion of the ammonia could have leaked from the containers and exposed the driver putting him to sleep.
Answer:
b. Bob listens to the radio station several hours per day but never donates since he suspects that other people will donate enough to keep the station on the air.
. Jim is working on a group project for a class in which he wants a high grade. However, since the grades are assigned to the group as a whole and he knows that the other group members will pick up most of the extra work, Jim calls in sick and plays video games on his Dream Station 64.
Explanation:
Free riding is when a person enjoys the benefit of a good or service but doesn't pay for it. This is a form of market failure.
Bob listens to the radio but doesn't donate and Jim would benefit from the grade given to the group but doesn't participate. These are instances of free riding.
Karl doesn't drive at night and so doesn't enjoy the benefits of the street light and doesn't pay. This is not an instance of free riding.
I hope my answer helps