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Explain the difference between productive efficiency and dynamic efficiency.

Dynamic efficiency is associated with the productive efficiency of a firm. However, dynamic efficiency is where a firm's super-normal profits are reinvested into technology and research and development to ma...
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Answered by Michael W. • Economics tutor
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Can you explain the difference between RPI and CPI inflation?

Retail Price Index and Consumer Price Index are both indices that seek to measure the current level of inflation, that is the general rise in price levels across goods over the year. CPI is calculated using ...
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Answered by Matthew H. • Economics tutor
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Write a critical appreciation of this extract from 'The Castle of Otranto', relating your discussion to your reading of the Gothic.

The idea of pursuit is explored through the plot in terms of narrative style as well as the progressing sentence structure. Walpole employs the use of an omniscient narrator in order to distance readers from...
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Describe 3 adaptations the ileum has that allow it to maximise the absorption of nutrients from its lumen into surrounding blood vessels.

The ileum is lined with simple cuboidal epithelium. This means there is a short diffusion pathway from the lumen of the gut to the surrounding blood vessels. The lining epithelia also has villi and the epith...
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Answered by Aliza K. • Biology tutor
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Use implicit differentiation to find dy/dx of the equation 3y^2 + 2^x + 9xy = sin(y).

Differentiating each term separately, and using implicit differentiation to differentiate the functions of y by differentiating with respect to y and multiplying by dy/dx, we can obtain 6y dy/dx + ln2 2^x + ...
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Answered by Luke S. • Maths tutor
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