Search over 10,000 free study notes

You can separate any surd into factors of the number that is being square rooted, for example when you have a surd such as √ 12 it can be rewritten as √ 2 X √ 6 or √ 3 X √ 4. This is very useful when we w...

The phenomenon you're describing is called 'Pythagoras theorem'. Let's go through it together. You have a right angled triangle, with the hypothesis and one side given. The pythagoras theorem gives you a ...

The Weimar Republic was undermined by both economic problems and by political unrest. The Treaty of Versailles had ramifications for both national morale and for German economic growth, as it forced Germa...

l(s) = xl(r) = 4xp(r) = 14xP(r) = 8x + 2w = 14xw = 3x

Acid in stomach kills pathogens in food.Skin creates a barrier that microorganisms cannot enter through.Hairs in nose and ears that trap microorganisms.Mucus and cilia in the trachea and bronchi that trap...