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How do I know when to use the imperfect tense?

The imperfect tense is the tense we use when we talk about an ongoing action in the past. It is therefore what we use when we talk about what we used to do when we were younger (we did it more than once, it ...
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Answered by Catherine H. • French tutor
2737 Views

Why do earthquakes happen at destructive plate margins?

At destructive plate margins, oceanic crust subducts beneath continental crust. In this zone of subduction a lot of friction is created as the plates move alongside each other. Over time, the build up of fri...
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Answered by Aimee M. • Geography tutor
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Solve the simultaneous equations. Equation one: 4x – 3y = 7. Equation two: 4x + y = -1.

To solve this question you need to find a value of x and y which satisfies both of the equations. Simultaneous equations can be solved by three methods: substitution, elimination, and graphically. We will us...
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Answered by Emma F. • Maths tutor
9322 Views

How do you form the perfect tense, le passé composé?

the perfect tense, le passé composé, expresses completed actions in the past. It is composed of -the auxiliary verb (avoir ou être) conjugated in the present tense - followed by the past participle of the ve...
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Answered by Elena R. • French tutor
3168 Views

Why is Pythagoras theorem (a^2 + b^2 = c^2) true for every right angle triangle?

Firstly let's take a right angle triangle. Label its sides a,b, c for the hypotenuse. Then arrange 4 of these triangles into a large square, with a smaller square contained within it. The area of the smaller...
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Answered by Edwyn G. • Maths tutor
8292 Views