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The key point in this question is noting that implicit differentiation is a very useful tool, although it is slightly different and looks much scarier than differentiating y = f(x).To do the question, a m...

912 = 4(x+2)(x+9)228 = (x+2)(x+9)228 = x² + 11x + 180 = x² + 11x -210using the quadratic formula we obtain x = -10 or x = 21As dimensions must be positive; x must equal 21Hence; the ...

They want to know if you are the best candidate for the job. Explain why you are the applicant they should hire in a confident, focus way. Example: You should hire me because my experience and training co...

One factor that will influence the choice of supplier by a large discount supermarket will be the ability of the supplier to supply goods at a suitably low purchase cost to enable the supermarket chain to...

Merit goods are goods that are under-consumed. They provide positive externalities and so the social benefit from consumption outweighs the private benefit. Market failure occurs when merit goods are unde...