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Sort a given input of lowercase letters alphabetically

In order to sort the sequence alphabetically the student must keep in mind that each lowercase letter has a corresponding ASCII numerical code defined such that its value increases linearly from A to Z. In P...
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Answered by Andrei R. • Python tutor
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Name two components of an animal cell, and briefly describe their role.

One component is the nucleus. This organelle contains the genetic information of the cell, in the form of DNA. Another component is the mitochondira. This is the site of respiration in the cell and therefore...
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Answered by Ceri N. • Biology tutor
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Find the derivative of the function f:(0,oo)->R, f(x)=x^x.

The domain of the function allows us to write f(x)=x x as f(x)=e ln(x ^x) =e x ln( x) (since ln(x) is defined on (0,oo) only). Using the standard derivative rules we get f'(x)=e x ln(x) (x ln(x))'=e x ln(x) ...
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Answered by Andrei R. • Maths tutor
3552 Views

How do you revise for the reading/listening test?

It may seem as though you are unable to revise for this section of the exam as you do not know what the questions will be, but there is in fact a lot you can do to prepare. My advice would be to write vocabu...
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Answered by Elinor T. • French tutor
2864 Views

How many quotes do I need to learn from (relevant book title)?

There is no right or wrong answer to the amount of quotes you need to learn. It's not about who can memorise the most words from the book, but rather who can understand and discuss the key themes in the book...
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Answered by Elinor T. • English tutor
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