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What are the three broad classifications of rock type? How is each produced?

The three main classifications of rock are igneous, sedimentary and metamorphic. Igneous rocks are produced by volcanic eruptions and form via the solidification of lava. Sedimentary rocks form via the erosi...
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Answered by Benjamin R. • Geology tutor
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Othello: ‘Typically, texts about husbands and wives present marriage from a male point of view.’ In the light of this view, discuss how Shakespeare presents the relationship between Othello and Desdemona in this extract and elsewhere in the play.

Particularly in an exam, breaking down the question helps us to understand what the examiners are looking for. We can then structure our answer in accordance. For example, in this question, there are various...
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What is an infinitive?

An infinitive is the basic form of a verb, meaning 'to...' (for example 'to eat' or 'to dance'). In English, infinitives are two words long, whereas in French they are just one word, ending in ' er ', ' re '...
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Answered by Lottie C. • French tutor
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Solve the simultaneous equations equation 1: 2x+3y=4 and equation 2: 5x+6y=7

This question can be solved by many methods but the elimination method is the fastest one in this case. The unknown that will be eliminated is y. Equation 1 is multiplied by 2 to give 4x+6y=8. Since I have c...
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Answered by Marilena P. • Maths tutor
5356 Views

Rearrange the following equation to make 'm' the subject: 4 (m - 2) = t (5m + 3) [4 marks]

Expand brackets on both sides: 4m − 8 = 5mt + 3t Collect all terms containing 'm' to one side of the equation: 4m − 5mt = 8 + 3t Factorise the terms containing 'm': m (4 − 5t) = 8 + 3t Divide by factorised v...
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Answered by Nadia M. • Maths tutor
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