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How do I use quotes within my answer?

The main points on how and when to use quotes are: Only include relevant quotes that support the overall argument. Do not just include random quotes to try and impress the examiner with your knowledge. Even ...
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Answered by Rhiannon L. • English tutor
3413 Views

What is a negative externality and how can you address them?

An externality is a benefit or a cost borne by a third party when producing or consuming a good. Hence there can be negative and positive externalities of production and consumption. E.g. Cigarettes have a n...
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Answered by Sofia D. • Economics tutor
12749 Views

What is implicit differentiation and how do I do it?

Implicit differentiation involves differentiating expressions for which it is difficult to rearrange into y in terms of x. It is important to note which variable is being differentiated by the other as, for ...
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Answered by Nicholas O. • Maths tutor
7129 Views

2476 people are at a football match. The ratio of men to women is 3 : 1. How many more men than women are at the match?

Ratios are a way of comparing the amount of two things in a whole. In this case we are comparing the number of men and women in a football match, so, the total number of people at the match is equal to the s...
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Answered by Emma B. • Maths tutor
10531 Views

Let f(x)=x^3-6x+3. i)Differentiate f(x) to find dy/dx. ii) Given that dy/dx = 12, find the value of x.

For part i) we use the basic method of differentiation by considering each term individually. The first term, x 3 goes to 3x 2 by multiplying the original term by the original power, by 3, and then subtracti...
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Answered by Samuel H. • Maths tutor
5343 Views