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Discuss the evidence for plate tectonic theory.

This question is a 10 marker and comes at the end of the 25 mark section on Plate Tectonics.

When answering a Discuss question it is important to remeber that it is in essence a mini ess...

Answered by Philip B. • Geography tutor

18296 Views

x^2 + y^2 + 10x + 2y - 4xy = 10. Find dy/dx in terms of x and y, fully simplifying your answer.

x² + y² + 10x + 2y - 4xy = 10

Start by differentiating both sides by x, the terms not containing y are differentiated normally, x² becomes 2x, 10x becomes ...

Answered by Guy L. • Maths tutor

14629 Views

How does a HDD (Hard drive disk) work?

A HDD is a mechanical form of storage, using electromagnetism to store and write data.
Mechanical drives are very prone to data lose and breaking when moved around, due to their mechanical nature.

Answered by Harvey B. • Computing tutor

4135 Views

Define tanh(t) in terms of exponentials

Whenever you have a define by exponentials question start with:

sinh(t)=0.5(e^t-e^-t) and cosh(t)=0.5(e^t+e^-t)

We know tanh(...

Answered by Nathaniel S. • Further Mathematics tutor

3685 Views

How do I properly introduce myself using a formal register in Italian?

Differently from English, Italian has a specific form to use when addressing people in a formal way. Generally speaking you have to use the third singular person of a verb (Egli-Ella-Lui-Lei) instead o...

Answered by Alessandro V. • Italian tutor

5816 Views