Top answers

A circle C with centre at the point (2, –1) passes through the point A at (4, –5).....

(a) Find an equation for the circle C. Before tackling a question like this it is always a good idea to draw a rough sketch of all the information that's given to you. The general equation of a circle is x 2...
BW
Answered by Brodie W. • Maths tutor
19157 Views

Describe how negative feedback is used to control blood glucose concentration (6 marks)

Throughout your answer to this question make sure that you are cramming as much key language into it as possible! Phrases like 'islets of Langerhans', 'beta/alpha cells', and 'transporter proteins' will all ...
MH
Answered by Matt H. • Biology tutor
21378 Views

How can you be original in a Personal Statement?

Universities read through thousands of personal statements every year, and because of this and restrictiong in length, it does become quite difficult ot be original. However, it is not impossible. Originalit...
CM
3063 Views

How is it possible to include so much information in such a short essay?

Precision and simplicity are what GCSE exam boards are looking for. You only have to look at the mark schemes to realise that it is very much a checking systen - there are specific points which the examiner ...
CM
Answered by Cecilia M. • History tutor
2587 Views

What is the cardiac cycle?

The cardiac cycle is what happens during a single heartbeat. To understand the cycle it helps to know that the heart is made up of four chambers, the top 2 chambers are called the atria and the lower 2 chamb...
MP
Answered by Megan P. • Biology tutor
5275 Views