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How can I use the Pythagoras' Theorem to work out the length of a missing side of a triangle?

We have the triangle ABC. AB = 3 BC = 4 AC = ? By inputting these numbers into the Pythagoras' Theorem, we can out the length of the missing side (AC). a 2 + b 2 = c 2 AB 2 + BC 2 = AC 2 9 + 16 = AC 2 25 = A...
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Answered by Zhane E. • Maths tutor
4087 Views

When do we use the imperfect tense and how is it formed?

The imperfect tense is used for continuous, ongoing actions in the past. It is often used for descriptions (when we are 'setting the scene') in the past, and it is used when we talk about things that we 'use...
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Answered by James H. • French tutor
2727 Views

Show that (x + 1)(x + 2)(x + 3) can be written in the form ax3 + bx2 + cx + d where a, b, c and d are positive integers.

lets expand the first two brackets first, so x * x gives x 2 , x * 2 gives 2x, x * 1 gives x and 1 * 2 = 2. 2x and x are both in terms of x so we add these together to get 3x, giving us the quadratic (x 2 + ...
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Answered by Annunzia C. • Maths tutor
29298 Views

Décrivez-vous en incluant votre famille, votre école et vos hobbies.

Je m'appelle Morgane et j'ai 21 ans. J'habite à Bath pour mes études de Management après avoir passé une année à travailler dans le centre de Londres, à Blackfriars. Moitié française, moitié anglaise - c'est...
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Answered by Morgane P. • French tutor
4245 Views

A mobile phone falls to the floor. The glass screen shatters while the aluminium frame remains intact. Explain why this happens in terms of the properties of glass and aluminium.

The glass screen is a brittle material so breaks with little plastic deformation.The aluminium material however shows elastic behavior and will, when the force is removed return to the original shape. This i...
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Answered by Lewis C. • Physics tutor
3630 Views