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We know the area of any triangle is equal to 0.5abSin(C). This means we need to find the length of side b and the angle C.First we can work out the angle C of the triangle as we know the angles in a trian...

1. Replace y with x + 3. x^2 + 2(x+3) = 9
   2) Expand the bracket, and subtract 9. x^2 + 2x - 3 = 0
   3) Factorise the quadratic(x - 1)(x + 3) = 0
   4) Therefore, x has 2 solutions. x = 1 and ...

In pure metals the atoms are all the same size , hence the layers of atoms can slider over each other. However, in an alloy the different size atoms distory the layers in the structure hence it is difficu...

Let’s first start by looking at some terminology that will help us to understand this verb a lot better: the terms “subject” and “object”. The subject of a sentence is the person/thing that carries out an...

The equation of a straight line takes the form of y=mx+c where m is the gradient of the line and c is the y-intercept (where the line crosses the y-axis). The best way to start this question is to draw a ...