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Work done = Force x distance the applied force has moved, hence 500 = 25d where d = unknown distance. Therefore the distance moved is 500/25 = 20m

This can be rewritten as x^1/2 + 4x^-1/2+ 4, hence dy/dx = (1/2)x^-1/2 - 2x^-3/2

The question asked for the ratio between the number of eggs in 2 boxes and the total number of eggs. From the question we know that the total number of eggs is the same as the number of eggs in 30 boxes. ...

The price elasticity of demand, also known as PED for short, is a measure of how responsive consumers of a product are to a change in price. In a competitive business market, its important for producer to...

For longer answer questions, examiners want to see you demonstrate a higher level of analysis and evaluation. The short mark answers rely solely on knowledge but the longer marks require you to do more wi...