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How can I best prepare for interview?

At Oxbridge, you are taught in tutorials, which are small groups of 1/2/3 where any work you have done that week is discussed with a tutor who teaches you your subject. Interviews are essentially mock tutori...
AS
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When do I use SER and when do I use ESTAR?

Firstly, ser and estar both mean 'to be'. When followed by a gerund, we always use estar . Eg: "La chica está cantando" The choice of the verb depends on many factors, mainly whether the adjective ...
LV
Answered by Lauren V. • Spanish tutor
2248 Views

Find the stationary points of y=x^3 + 3x^2 - 9x - 4

The stationary points of the function are the points at which the gradient is equal to 0. (If you draw out a standard y=x^3 graph, you can see the gradient is 0 at the points where the graph changes directio...
NB
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Jo wants to work out the solutions of x^2 + 3x – 5 = 0. Can the solution be worked out?

In this question we are looking for a solution to x where the equation will equal to 0.We can first try factorising this, in the framework: (x+a)(x+b). Remembering the method of FOILS (first, outer, inner, l...
VG
Answered by Vivek G. • Maths tutor
5933 Views

Explain the concept of price elasticity

Price elasticity of demand (PED) is how demand of a good/service changes as the price of the good/service changes.As a formula: % change in quantity demanded / % change in pricePED < 1 means the quantity ...
VG
Answered by Vivek G. • Economics tutor
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