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How does a firm's marginal cost and average cost relate to each other? (Microeconomics)

Average costs represent the total cost of a firm divided by the total number of units produced, and Marginal cost meanwhile represents the extra costs incurred by a firm of producing an additional unit of ou...
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Answered by Manel B. • Economics tutor
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Apart from voting in elections and referendums, outline two ways in which people participate in politics (5 marks)

People can participate in politics through petitions and initiatives. A petition is a document signed by the people and if enough people sign it then it has to be debated in parliament. In the UK there is a ...
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How do I know if a piece is in 'Sonata Form'.

There are two tests to determine if a piece is in Sonata Form. Firstly, we must look at the harmonies of the piece. The first sections (referred to as the Exposition ) will begin in the tonic (I) and modulat...
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Answered by James R. • Music tutor
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A stone is thrown from a bridge 10m above water at 30ms^-1 30 degrees above the horizontal. How long does the stone take to strike the water? What is its horizontal displacement at this time?

The first thing to do for part a) is work out the vertical component of the velocity. By drawing a triangle where 30m/s is the hypotenuse with angles of 30 degrees, 90 degrees, and 60 degrees, and by applyin...
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Answered by Sarah U. • Maths tutor
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What is the derivative of f(x)=sqrt(3x+2)=(3x+2)^(1/2)?

By the power rule, the derivative of x^(n) is nx(n^1) and by the chain rule, the derivative of g(h(x)) is g'(h(x))h'(x). Let g(x)=x^(1/2) and h(x)=3x+2 so that f(x)=g(h(x)). Then by the power rule, g'(x)=(1/...
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Answered by Luke P. • Maths tutor
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