Top answers

What is a derivative and how are they used?

A derivative is a function that tells us the gradient of a curve at any point. Say you have a function like f(x)=x 3 +x 2 and you want to know when the function is stationary, i.e. has a gradient of zero. We...
NS
Answered by Nikhil S. • Maths tutor
4192 Views

How do governments use fiscal policy?

Fiscal policy involves using taxation revenue and government spending to improve the state of the economy. During times of recession and crisis, governments will often use expansionary fiscal policy (lower t...
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Answered by Nikhil S. • Economics tutor
2639 Views

How do I structure my essays under timed pressure/in an exam?

The best way to keep an essay structured is to do a rough plan before you start writing. Spend about 5-10 minutes on it (or less if the exam isn't generous with time) in order to collect and organise your th...
IM
4875 Views

What is the subjunctive? Is it another verb tense? How can I incorporate it into my French A-Level writing/speaking?

The subjunctive is a mood, rather than a tense, and while it is used in English (‘I wish that it were ’, ‘I suggest that you remain where you are’), it is not very common. In French, however, it is much more...
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Answered by Jade S. • French tutor
2161 Views

3x + 2 = 11. what is x?

3x + 2 = 11 . 3x = 9 . x=3 .
EV
Answered by Emma V. • Maths tutor
16118 Views