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Both terms are commonly used when studying the topic of settlements, however, they do not mean the same thing and it is important for students to distinguish between the two. 'Site' refers to the physical...

Students should recognise that 'describe' and 'explain' questions require different approaches. When being asked to 'describe' a figure, the student should simply state the trends occurring in said figure...

Okay so first, to make the process more simple, I would suggest collecting all algebraic terms on the same side of the question as to get: 9x-5y=21 and 7y+6x=45 (as it already is). Next, looking at both e...

You want to take the derivative of both sides of the equation with respect to x which produces an equation in terms of x, y and dy/dx which can then be rearanged. The right side is just 0 since 17 is a co...

Algebra is a part of mathematics in which letters or symbols are used to represent either a known constant or an unknown value. Algebra is often used within formulae in which we can extrapolate an answer,...