A simple method of defining the coefficients in the equations of chemical reactions with the help of a system of linear algebraic equations.
Scheduling games is a little more challenging than one might desire. Here are some tournament formats that sport schedulers use.
An observer is on top of a lighthouse. How far from the foot of the lighthouse is the horizon that the observer can see?
Being green is a good thing, but how are we to know what the greenest choices to make are? Why not make up your own mind by analysing some of the following statements yourself?
At the foot of the question we provide you with lots of data taken from the internet. This isn't necessarily all of the data needed to complete the investigation, but a set of data which appears to be relevant to the problem. Some of the sources are given at the foot of the problem. You may, in your work, find that you need more data or question what the data, as
presented, might really mean. Use your common sense to try to decide what the most important factors are.
Questions to consider
You might also want to challenge other commonly accepted green ideas or the impact of various green activities. For example, what is the relative impact of these green measures? What mass of carbon do these various common activities use up?