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This question can be difficult to see where to start, but can be quite easily solved once you realise what you have to do Firstly, let ax²+ bx + c =0. If this is also true, a=1, b= -3, and c...

The main difference between Oxbridge and other universities is the unique tutorial system. These are weekly sessions between a tutor (who is usually an expert in their chosen field) and up to three studen...

1. Fertilisers are washed into waterways by rain or irrigation.

2. The increased availability of nutrients causes aquatic plant life to grow rapidly.

Speed and velocity may seem like identical measures but this is not the case. Speed is a scalar measurement meaning it only takes into account magnitude not direction, velocity is a vector quantity and...

y=a^x

take natural logs (also written as ln or log base e) of both sides

lny=lna^x

by logarithms rules lna^x=xlna

lny=xlna

Now diff...