Search over 10,000 free study notes

First of all, we must remember the formula for the equation of a line. This is y=mx+c. It is important to understand what each part of the equation means: - y is the y-coordinate of any point on the line - x...

Flood plains form when the discharge of the river channel exceeds it's capacity. As the river transports sediment via traction, suspension, saltation and solution the sediment is held within the river channe...

Firstly simplify the equation down so all the elements are approximated to 1 significant figure, this gives us:0.1 x 50 2 / 4 1/2 Then work out the values of the 50 2 and 4 1/2 50 2 = 25004 1/2 =2Put these b...

So when you want to expand out 2 brackets, there's a really simple method, known as FOIL. FOIL stands for "First, Outer, Inner, & Last". So if we look at the two brackets you gave as an example...

When given a sequence of numbers, there is often a rule using n, which symbolises the term of the sequence. For example in the sequence 3, 5, 7, 9, when n=1 it is referring to 3, since this is the first term...