Top answers

How do I find the roots of a quadratic equation?

A quadratic equation is one that contains an x^2 term that has a non 0 coefficient, There are three basic methods for solving a quadratic equation; factorising, completing the square, and the quadratic formu...
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Answered by MacGregor C. • Maths tutor
4661 Views

What is meant by the doctrine of Parliamentary sovereignty (supremacy)?

Parliamentary sovereignty is the idea, originating in this form in the United Kingdom legal system, that ‘Any Act of Parliament, or any part of an Act of Parliament, which makes a new law, repeals or modifie...
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Answered by Matthew O. • Law tutor
10208 Views

How do I answer a question which requires source analysis?

The most common question in history A-level source papers is “With reference to these sources and your understanding of the historical context, assess the value of these sources to an historian”. The most im...
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Answered by Elin S. • History tutor
5879 Views

Vous écrivez un article sur l'importance des réseaux sociaux pour votre blog.

De nos jours, les réseaux sociaux jouent un rôle extrêmement important pour les jeunes et aussi pour les adultes. Pour les jeunes, les sites en ligne comme Facebook et Twitter sont essentiels pour se connect...
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Answered by Elliot L. • French tutor
3320 Views

Describe and explain the adaptions of the human alveoli in making gas exchange efficient

Gas exchange can be made efficient in three main ways: shortening the diffusion distance, increasing the diffusion speed and increasing the surface area of the diffusion surface. The alveoli in the human lun...
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Answered by Eloise G. • Biology tutor
4886 Views