Search our library of homework questions

Top answers

All subjects

All levels

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...

Answered by Fiona B. • French tutor

1935 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 bra...

Answered by Connaire W. • Maths tutor

4393 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, bu...

Answered by Nathan M. • Physics tutor

3026 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 subjec...

Answered by Lucile O. • French tutor

64721 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 amoun...

Answered by James S. • Economics tutor

42963 Views