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Firms in a perfectly competitive market can make supernormal profits but only in the short run. Supernormal profit is made where average revenue exceeds average cost. In a perfectly competitive market, fi...
Firstly, don't forget that it's normal not to know what a poem is saying straight away! The whole idea of a poem is for a poet to put forward an idea or thought implicitly, using metaphor...
The quadratic formula is used to solve the quadratic equation. Although methods like factorising or completing the square can easily be used, this offers another method which can be used for more difficul...
Osmosis is the movement of water molecules from a high partial pressure (or concentration) to a low partial pressure (or concentration) down a pa...
There are five main parts that make up the answer to this question. Remember at GCSE the mark scheme is rather specific so you will need to make sure you mention all 5 of these items in order to gain maxi...
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