Search over 10,000 free study notes

Firstly, I will provide a 'mark scheme' type answer.

Then there is a full explanation available underneath.  4 (x-5)=x+7. 4x-20=x+7. 3x=27. x=9. A full explanation: 4(x-5)=x+7 (expand the equation ...

Okay so let's say that the equation of the line you are given is y=2x+3 and you are told this new line must pass through the coordinates (2,4). The first thing we need to do is check we understand every b...

This question relates to the gothic ambiguity between good and evil, which is associated with the unknown and the liminal status and experience of various characters. Arguably, the boundaries between good...

Advantage: Experiments allow you to control variables which affect the dependent variable, so that it is easier to ensure that observed effects are caused by the independent variable, rather than any extr...

Evolution by natural selection needs three conditions to be satisfied: variation, heredity, and competition (also called differential fitness).

1. There must be variation in a popula...