Search over 10,000 free study notes

You would first multiply the expression by (3-root(5))/(3-root(5) - which equals 1 - to get (6-2root(5))/14 which then equals 3/7 - (1/7)*root(5) and you are done.

Luckily, there is an easy way to remember which verbs take 'être' and which take 'avoir' in the perfect tense. You just need to learn the following acronym:

M - mourir

R - retourner

S...

The reflex arc is a pathway that contorls a reflex action. Reflex actions are very fast (milliseconds fast) which can help in dangerous situations. For example, if I touch a hot pan, the reflex would be m...

So for GCSE the key to this question is in the periodic table: Note drawing the atoms can be helpful to show the shells. 

F: 2,7

Cl: 2,8,7

Firstlet's look up Flurorine (symbol F in th...

Develop and express ideas in Spanish. Being able to have an everyday conversation .