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What are the different types of inflation?

There are two types of inflation. The first, cost-push inflation, is where the RPI rises due to increased costs for firms across the macroeconomy. This could be down to a rise in the cost of imported raw mat...
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Answered by Tom B. • Economics tutor
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What is the working memory model?

The working memory model was designed by Baddeley and Hitch, who criticised the multi store model of memory as being too unitary. The multi store model showed the short term memory as being one very simple s...
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What is the difference between conflict and consensus theories of society?

Consensus theorists support the idea that everyone in society has a shared, communal goal which they work together in harmony to achieve. This is known as social solidarity. One consensus theorist, Emile Dur...
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Answered by Shannon M. • Sociology tutor
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Express 4x/(x^2-9)-2/(x+3) as a single fraction in its simplest form

4x/(x 2 -9)-2/(x+3) = 4x/((x+3)(x-3))-2/(x+3) = 4x/((x+3)(x-3))-2(x-3)/((x+3)(x-3)) = (4x-2(x-3))/((x+3)(x-3)) = (2x+6)/((x+3)(x-3) = (2(x+3))/((x+3)(x-3)) = 2/(x-3)
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Answered by Charles S. • Maths tutor
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Find the equation of the normal to the curve y=2x^3 at the point on the curve where x=2. Write in the form of ax+by=c.

For x = 2, y = 16. Calculate the gradient of the curve at y = 2, dy/dx = 6x^2, dy/dx = 24. This is also the gradient of the tangent to the curve at x = 2. It is a rule that the products of the gradients of t...
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Answered by Maddy L. • Maths tutor
10050 Views