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To solve simultaneous equations you need to cancel out variables like x and y one at a time to solve for the other. In the edexcel GCSE 2017 paper this question came up: solve simultaneously x²...

The lock-and-key mechanism of enzyme activation involves the active site of the enzyme fitting perfectly with the substrate molecule and the subsequent reaction being catalysed biologically. However, the ...

It cannot be disputed that as Prussian minister-president in the 1860s Bismarck played a pivotal role on the events during the period, however the myth surrounding the idealistic image of him as a ‘blacks...

Answer: 17
First must find the nth term = dn + b (difference x term number + the back track)In this instance the difference is 3 and the backtrack, term before the first is 2Therefore the nth term is...

You have a general quadratic of the form: ax^2 + bx + c = 0, where a,b,c are constants (although is consistent for functions). Divide by a (assuming a/=0, this would not be a quadratic in that case):x^2 +...