Search over 10,000 free study notes

My approach will take you step by step through each type of question you find difficult. Maths (quite usefully) is very procedural. This means if you follow the instructions step by step you'll find you'r...

Start by labelling each term, e.g. 3 is the 1st, 7 is the second etc

Find the difference between each term, in this case +4 so we know our nth term will start with 4n 

Now we substitute in t...

Bile is used in the digestive system to emulsify fats. This means that it breaks down the fats into smaller fat droplets creating a larger surface area for the digestive enzymes to work on. 

The perfect tense is used to describe completed actions in the past, and is formed in two parts. First comes the auxiliary verb (depending on the verb that you are putting into the past tense, this will e...

Regular -AR verbs are conjugated by finding the stem (removing the AR ending) and adding on the appropriate endings for each person, listed here: Yo - É, Tu - ASTE, El - Ó, Nosotros - AMOS, Vosotros - AST...