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How do I analyse unseen poetry?

When you first read a poem, it's important to put on your detective hat! It's almost like arriving at a crime scene for the first time.To be a great detective you need to be prepared! Bring a pen and high...

Answered by Lucy N. • English Literature tutor

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Describe how a synapse works

- An electrical impulse travels down the axon of a pre-synaptic neurone. - The movement of this electrical impulse initiates the release of chemical messengers which are...

Answered by Saira I. • Biology tutor

2804 Views

Integrate 2x/(x^2+3) using the substitution u=x^2+3

u=x² + 3

du/dx=2x

dx=du/2x

2x/(x²+3) dx becomes (2x/u) * (du/2x)

the 2x terms cancel out giving 1/u du

this integrates to ln(u)+c becoming ln(x

Answered by Tom S. • Maths tutor

13381 Views

If timber prices fall by 30%, what will be the expected % change in demand for timber in the economy if the Price Elasticity of Demand is -0.5, and explain the effect on revenue for a timber-selling firm.

Price Elasticity of Demand (PED) is a measure of the responsiveness of demand to a change in price. A PED of -0.5 suggests demand is price inelastic – as Price falls by 1%, Demand will increase by 0.5% (l...

Answered by Harry C. • Economics tutor

1778 Views

Core 1: Given that y = x^4 + x^2+3. Find dy/dx

First what we need to do is we need to think of what the question is asking us to find. In this case it is dy/dx but what is this. This is the rate of change of y with respect to x. For understanding pur...

Answered by David S. • Maths tutor

2945 Views