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Give three disadvantages of using an economic measure of development such as GNI.

Economic measures, especially simplistic measures such as GNI, can be misleading. Firstly, economic measures do not take any account of people’s quality of life which is important in social terms. Secondly, ...
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Answered by Suhani G. • Geography tutor
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The perimeter of a right-angled triangle is 72 cm. The lengths of its sides are in the ratio 3 : 4 : 5 Work out the area of the triangle.

Let x be a number so that the sides of the triangle are 3x, 4x and 5x, because the ratio is 3 : 4 : 5. The perimeter is 3x+4x+5x=12x=72, meaning that x = 72/12 = 6. The sides of the triangle are 3 6=18, 4 6=...
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Answered by Vlad P. • Maths tutor
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Define the term "elastic demand"

Elasticity of demand is the percentage change in demand quantity divided by the percentage change in price. If demand is very elastic it means that it is very sensitive to changes in price. A price change of...
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Answered by Lucy F. • Economics tutor
2422 Views

What is cytokinesis?

Cytokinesis is really just a fancy word for cell division. It is an important stage in both mitosis and meiosis that allows 2 new cells to be produced from 1. The way this is achieved is through the use of a...
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Answered by Divine A. • Biology tutor
7208 Views

What is Bayes' rule and why is it useful?

Bayes' rule is a really neat equation that's used everywhere, including in Artificial Intelligence! Most things in the real world aren't certain: that's why we use probabilities. Also, we often can't directl...
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Answered by Andrew S. • Maths tutor
3977 Views