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What is price elasticity of demand?

Price elasticity of demand measures consumer's demand responsiveness to changes in price. Depending of the type of good, consumers either respond to a change in price by decreasing or increasing demand for t...
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Answered by Ruby O. • Economics tutor
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Explain the arguments for and against airport expansion.

One argument that has been deployed by the government in particular, in favour of airport expansion is the boost in employment and of tourism that can be achieved. The Coalition, despite being labelled as th...
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Write a Commentary on Valentine by Carol Ann Duffy (Paper 1)

http://www.scottishpoetrylibrary.org.uk/poetry/poems/valentine The poem “Valentine” by Carol Ann Duffy dismisses the archetypal and materialistic notions surrounding love and romance and instead explores a m...
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Answered by Mathilda H. • English tutor
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Describe the similarities and differences between animal and plant cells and the function of each component found in them.

An animals cell contains a cell membrane, nucleus, mitochondria, cytoplasm and ribosomes. A plant cell contains all of these components as well as a cell wall, chloroplasts and a vacuole. A cell membrane is ...
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Answered by Isobel B. • Biology tutor
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How do you solve a Differential equation using integrating factors?

Check the equation is in the form dy/dx + P(x) y=Q(x) (show example) Find the int factor: I(x)=e integralP(x) dx Multiply all terms by the integrating factorMake sure you show this step clearly: d/dx(I(x)y) ...
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Answered by Rachael B. • Maths tutor
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