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Explain why a firm in perfect competition can not experience abnormal profit in the long run.

Perfect competition is a market structure in which an infinite number of firms produces identical products for an infinite number of consumers. It is an ideal and theoretical model. Abnormal (supernormal/eco...
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Answered by Bianca V. • Economics tutor
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Solve the pair of simultaneous equations {4x + y = 5, 3x - y = 2} using i) a graph and ii) an algebraic method

a) Draw graph and find points of intersection (will be done on whiteboard). b) Sum equations to get 7x=7, so x=1 and y=1.
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Answered by Jacob F. • Maths tutor
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Explain how ATP is generated by oxidative phosphorylation.

Electrons and H+ ions are donated to the electron transport chain (located in the inner mitochondrial membrane) from NADH and FADH2 (generated during glycolysis, the Krebbs cycle and the Link reaction). Thes...
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Answered by Katie O. • Biology tutor
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Integrate xcos(x) with respect to x

Using LATEX (Logarithms, Algebra, Trigonometry, Exponential and Complex numbers) to determine which variable is du and which is dv/dx. This is decided by using the above acronym. For example in this question...
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Evaluate the Ontological Argument for the Existence of God

The Ontological argument attempts to prove the existence of God deductively. Anselm is seen as having put forward this argument in its original form, paraphrased as the following syllogism: 1. The existence ...
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Answered by Matei M. • Philosophy tutor
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