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Let 2a-5b=11 be Equation 1 and 3a+2b=7 be Equation 2. To find a and b, we first need to eliminate one of these variables from the equation. Firstly we can eliminate a from both equations to find b. To do ...

Since the equation for y is a composite function (applying one function to another function) we need to use the chain rule to answer this question. Firstly let u = x^2+1 . This allows us to write y = 2u^3...

I have always had an interest for the subject and find it very interesting. I have achieved both GCSE and A-Level biology and am currently studying Biochemistry with Genetics at university. I understand t...

Price elasticity of demand (PED) measures the responsiveness of percentage change in the quantity demanded of a good with respect to a percentage change in the price of a good. It is measured by the formu...

Diseconomies of scale occurs when the average cost of a product begins rising as a business expands. This may occur due to problems communicating: as a business expands it's chain of command increases whi...