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What characteristics might a perfectly competitive market have? Choose 3 (6 marks)

The first characteristic is that the products are homogenous, meaning there is little difference between the quality of the goods being sold by the individual firms.

The second characteri...

Answered by Salah S. • Economics tutor

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Describe chemical test/s you could use to determine the identity of a carbonyl compound.

Use Brady's Reagent (2,4-DNPH) to test for the presence of the C=O bond in a carbonyl compound. The formation of a yellow precipitate indicates a positive test result. Then determine the melting point ...

Answered by Megan B. • Chemistry tutor

7836 Views

When should you use the passé simple instead of the imparfait?/Quand devrais-tu utiliser le passé simple à la place de l'imparfait?

The passé simple is used to describe an action that belongs exclusively in the past and was not a habit, as in it happened only once in the past; whereas the imparfait is used to decribe an action that...

Answered by Arthur B. • French tutor

3113 Views

How do I differentiate something in the form f(x)/g(x)?

To differentiate the quotient of two functions f(x)/g(x) you can use the quotient rule, the formula of which is: (f'(x)*g(x)-f(x)*g'(x))/g²(x)

it is important to remember which...

Answered by Riccardo P. • Maths tutor

9305 Views

Do the following vector equations intersect? l = (1 + μ)i + (2 - μ)j + (2μ - 5)k, and m = 2λi + 3j + (2 + λ)k.

Firstly we must appreciate that if there is an intersection between l and m, this means that there exists a point that occurs on both lines. Therefore if there is an inte...

Answered by Harry D. • Maths tutor

7991 Views