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When do I use qui and when do I use que?

When using qui and que in a question, qui means who and que means what, e.g. "qui est cette femme?", "que devons-nous faire ce matin?". However, used as a pronoun, qui represents the subj...
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Answered by Alexandra I. • French tutor
2774 Views

Why do you need to use the preposition 'a' when talking about a person?

When the direct object of a sentence is a person e.g. "ayer yo llamé a Juan", you must use the preposition 'a'. It is not necessary with inanimate objects, but any person/pet that you have a person...
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Answered by Alexandra I. • Spanish tutor
2384 Views

How do I evaluate the usefulness/ reliability of a source?

Firstly consider the nature of the source as that affects the broadness of its coverage and its neutrality. For instance, a chronicle or a news report may just simply provide a neutral narrative of what happ...
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Answered by Joseph B. • History tutor
5221 Views

whats the integral of x.e^x wrt x

e^x(u-1)
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Answered by Peter C. • Maths tutor
5404 Views

An open-topped fish tank is to be made for an aquarium. It will have a square base, rectangular sides, and a volume of 60 m3. The base materials cost £15 per m2 and the sides £8 per m2. What should the height be to minimise costs?

Establish the areas of each of the five faces of the aquarium in terms of x and y, and then sum to obtain a function of the cost in x and y. Then identify that the volume also gives a function in x and y. Re...
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Answered by Jonny P. • Maths tutor
8212 Views