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What is PED and how do I calculate it?

PEDstands for the Price Elasticity of Demand.This measures how responsive demand is for a product or service in relation to a change in price.
The general formula fo...

Answered by Charlotte C. • Economics tutor

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What are the redox reactions involving carbonyls?

Carbonyls are aldehydes and ketones, both can be a product of an alcohol's oxidation reaction. A common reagent for that is potassium dichromate and sulphuric acid (the dichromate ion is reduced to a Cr

Answered by Krisztina J. • Chemistry tutor

2810 Views

What is Pythagoras' Theorem and how do I use it?

Pythagoras' Theorem is used to find the length of the hypotenuse (longest side, opposite the 90 degree angle) of a right angled triangle when the length of ...

Answered by Sophie T. • Maths tutor

3192 Views

Explain why a rise in investment should help to increase the rate of growth of the UK economy

Investment is part of Aggregate Demand (AD). If there is an increase in investment then there will be a rise in the demand for capital goods and this means that the firms supplying the goods will have an ...

Answered by Peter M. • Economics tutor

11003 Views

Explain how two different species of rabbits could have developed from a common ancestor?

The population of rabbits (common ancestor) must have gotten seperated to form two populations. This could have happened due to a geographical barrier (such as an earthquake). These two ...

Answered by Precious J. • Biology tutor

3665 Views