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How do I know what auxiliary verb to use in the passé composé?

The passé composé is used to describe a single, completed action in the past. The passé composé is a compound tense, meaning you need two components to conjugate the verb: 1) the auxiliary verb (avoir or ...

Answered by Lara K. • French tutor

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Describe and explain the trend in boiling points in the first four hydrogen halides

HF has the highest boiling point this is followed by HI, then HBr with HCl having the lowest boiling point of the four molecules. This is because HF is able to form Hydrogen bonds whereas the other three ...

Answered by Theo M. • Chemistry tutor

49114 Views

Differentiate xcos(x) with respect to x.

How do we know which method of differentiation to use in this example?
Well in ‘xos(x)’, we have 2 different functions: ‘x’ and ‘cos(x)’. Therefore, we must differentiate using the p...

Answered by Oliver S. • Maths tutor

4923 Views

'Othello's virtue and valour ultimately make him admirable.' To what extent to do you agree with this view? (AQA A level English Literature question)

As a Venetian soldier, Othello holds a great deal of valour within his society, despite being an outcast due to his race. However, his virtue and valour are greatly undermined when he is prayed on by Iago...

Answered by Katie I. • English tutor

7893 Views

The length of a rectangle is five times the width. The area of the rectangle is 1620 cm(squared) Work out the width of the rectangle.

If the length is 5 times the width we can say that length=5a if width=a. We know the equation for: the area of a rectangle= length x width.In this case: area= 5a x a= 5a² and from the question ...

Answered by Sophie J. • Maths tutor

10080 Views