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What are the trade-offs with other macroeconomic policy objectives of a fall in the unemployment rate?

When answering an exam question such as this it is crucial to get down the key definitions, this also helps you when it comes to structuring an answer. For example, laying out the MEPOs in the introduction w...
CS
Answered by Charlie S. • Economics tutor
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Find the derivative of y = 3x^4 - 10x^2+7x

The method used to find the derivative (dy/dx) of the equation is to: "Multiply the coefficient of x by the power then deduct the power x is raised to by 1" Step 1: 3x^4 Carry the power of 4 down a...
HO
Answered by Hameedat O. • Maths tutor
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How do i use chain rule to calculate the derivative dy/dx of a curve given by 2 "parametric equations": x=(t-1)^3, y=3t-8/t^2

(Explain why it is called "parametric"). The definition of chain rule says that we can re-write the derivative dy/dx in terms of the "parameter t" by dy/dx = (dy/dt) X (dt/dx). (Explain w...
AF
Answered by Adil F. • Maths tutor
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Why is a nucleophilic substitution reaction between ammonia and benzene unlikely?

A nucleophilic substitution reaction is when a nucleophile (an electron pair donor) replaces an atom or part of a molecule. In this scenario ammonia (NH 3 ) is the nucleophile as it contains a lone pair of e...
AS
Answered by Archit S. • Chemistry tutor
11958 Views

Describe how the presentation of a virus antigen on a cell leads to the secretion of antibodies against this viral antigen

3 mark question - remember to use key words/phrases the examiner will be looking for to give you the marks. Be concise and specific in your answer - make it as easy as possible for the examiner. Helper T cel...
EM
Answered by Eleanor M. • Biology tutor
24594 Views