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Por or Para

Careful with this very common mistake! It may not seem like it will make a big difference, but it can, in fact completely change the meaning of what you are saying. Por is used for: 1) travel and communicati...
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Answered by Charlotte M. • Spanish tutor
4068 Views

When should I use imparfait and passé composé?

Passé composé (AVOIR ou ETRE + participe passé) is used for ponctuel actions in the past which have been ended. Ce matin, j’ai mangé une tartine de pain. On the other hand, imparfait is used for descriptions...
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Answered by Charlotte M. • French tutor
3149 Views

How do I make a free body diagram ?

To create a free body diagram, first you need to identify a body you are intrested in. Do you have it ? Great! Now lets draw this body isolated. I mean you don't want to include any object in its surroding i...
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Answered by Mateusz M. • Physics tutor
2089 Views

Mutations can occur in DNA. Describe what effect a mutation can have on the function of an enzyme.

A mutation is a change in the DNA base sequence. This causes a change in the amino acid that is synthesised, and this could change the shape of the active site on an enzyme. The shape of the active site may ...
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Answered by Mahdia S. • Biology tutor
36426 Views

Given that y=x/(2x+5) find dy/dx.

Using the quotient rule: Let u=x and v=2x+5 then du/dx= 1 and dv/dx=2 Hence dy/dx=[(2x+5)x1- (2x)]/(2x+5) 2 =5/(2x+5) 2
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Answered by Shayna B. • Maths tutor
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