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How do you form the future tense?

The future tense, just like in English, is used to discuss events that will take place in the future. For example, you might use it to discuss your plans for the summer, or even what you are going to have fo...
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Answered by Fiona B. • French tutor
2608 Views

Express x^2-7x+2 in the form (x-p)^2+q where p and q are rational. Hence or otherwise find the minimum value of x^2-7x+2

For the first part, use the 'complete the square method', which gives (x-7/2) 2 -49/4+2, simplified to (x-7/2) 2 -41/4. To find the answer for the second part, set x=7/2 so that the bracketed part becomes 0,...
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Answered by Connaire W. • Maths tutor
5325 Views

An isotope of 238,92-Uranium decays into a stable isotope of 206,82-Lead through a series of alpha and beta decays, how many of each does it go through?

This is a good example of where simplification can make an otherwise tricky question a lot easier. It is easy to get confused trying to work out different isotopes and the extra products of the decays, but a...
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Answered by Nathan M. • Physics tutor
6081 Views

What is the difference between "est", "es" and "et"?

We can classify these words in two categories, verbs for "est" and "es" which are the conjugaison of the verbe "être" = "be". "est" is use when the subject c...
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Answered by Lucile O. • French tutor
82800 Views

Explain why the average and marginal revenue curves for a perfectly competitive firm are horizontal while those of a monopoly slope downwards.

The average revenue curve for a perfectly competitive firm is horizontal due to the fact that it faces perfectly elastic demand at the market determined price. This is because there is a significant amount o...
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Answered by James S. • Economics tutor
50754 Views