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Used for right angled triangles where c is the hypothenuse and a and b are the two other sides. Equation: a 2 + b 2 = c 2 Label the sides of the triangle before starting. To find the length of c you do the r...

To solve the equation means to make x the subject i.e. to make x on its own. Therefore, we need to add 6. If you add 6 to one side you must also add 6 to the other side. x-6+6 = 15+6 x = 21 So x=21.

The ratio of 3:1 involves 4 units. 3 men +1 woman. Find how many people each unit represents: 4units 2476 people Therefore each unit represents 2476/4 = 619 people per unit Now, take the ratio, and multiply ...

An integral is the area that lies below a graphed line and the x-axis, an indefinite integral is when an interval is not used, and so is often infinite, as it covers the entire area under a graph, and not ju...

A parametric equation is one that is defined in terms of a single parameter, usually called t. This means that, instead of the standard geometric equation, where y and x are defined by each other, e.g. y=3x,...