Top answers


Find minimum and maximum of x^2+1 if they exist

There are several methods of finding the extrema(plural of extremums or in other words minimum or maximum values) of a function. For now we will analyse the function using the dy/dx of f(x)=y=x 2 +1, f ` (x)...
PG
Answered by Pavel G. Maths tutor
5229 Views

What is the French subjunctive?

The subjunctive is a mood which expresses actions or ideas which have an element of doubt or subjectivity about them. Examples include emotions, will/wanting, possibility, necessity and opinions/judgements. ...
NH
Answered by Natasha H. French tutor
3663 Views

What is a cadence?

Cadences are often described as musical punctuation. They come at the ends of musical phrases and passages. There is a perfect cadence, which sounds final, like a full stop; there is an imperfect cadence whi...
NH
Answered by Natasha H. Music tutor
6922 Views

Why are metals good conductors?

Metals have delocalised electrons which are free to move and carry charge throughout the sea of cations.
EH
Answered by Emma H. Chemistry tutor
2714 Views

What is a depression?

A depression is a weather system of low pressure which moves across the British Isles from west to east. It involves two air masses which meet at a front. The air masses are tropical maritime which brings wa...
EH
Answered by Emma H. Geography tutor
3503 Views