Top answers


Describe the mechanics of breathing at rest

During inhalation, the diaphragm contracts to flatten and the internal intercostal muscles contract, moving the rib cage up and out. This causes an increase in thoracic cavity volume, causing the pressure in...
RK
2975 Views

How do I structure my essay to maximise marks and impress the examiner on the essay question?

Firstly, at GCSE it is possible to follow a very rigid structure and receive very high marks. You should write a very brief introduction and about 3 paragraphs with a conclusion that links and prioritises yo...
LS
Answered by Lukasz S. • History tutor
2738 Views

You are given a polynomial f, where f(x)=x^4 - 14x^3 + 74 x^2 -184x + 208, you are told that f(5+i)=0. Express f as the product of two quadratic polynomials and state all roots of f.

Since x=5+i is a solution to f(x)=0 we then know that x=5-i must also be a solution to f(x)=0, by the complex conjugate root theorem.Now we can break f down into the product of a polynomial and these two kno...
PL
2772 Views

Assess & Compare the Advantages and Disadvantages of TQM with Quality Control.

Total Quality Management is an attitude towards quality where the key aims are zero defects and total customer satisfaction. Advantages Costs are reduced due to less wastage Disadvantages Time-costlyHigh sta...
EO
3573 Views

What are the advantages of Ballot Propositions in the USA?

Direct Democracy Upholds government of the people, for the people, by the people, allowing strong political participation and high popular sovereignty. Shows influence of society upon pressing political issu...
EO
4203 Views