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How do I find the derivative of 2^x?

To find the derivative of any number to the power "x", such as 2 x , 5 x , or even 4.13 x , we first consider the general form a x . We need to be a little creative here. We know that any variable ...
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Answered by Katerina S. • Maths tutor
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explain diffusion and give an example

diffusion is the movement of particles from a high concentration to a low concentration through a semi permeable membrane. an example would be the movement of food molecules through the gut wall as they pass...
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Answered by Charlie H. • Biology tutor
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what is a risk factor

risk factor is something which increases your chance of developing a particular disease. risk factor of coronory heart disease is diet due to the atheroma developed from the fatty material deposited in the a...
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Answered by Charlie H. • Biology tutor
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what is eutrophication

eutrophication is whereby excess feriliser from farmland has run off into areas of water such as lakes or rivers. algae growth is promoted due to the rise in phosphates. in turn the remaining oxygen in the w...
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Answered by Charlie H. • Biology tutor
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Following Teresa May's Brexit speech, the UK exchange rate in terms of euros depreciated from 1.13 to 1.08. If a firm sells 20000 units at 4 euros per unit, what is the difference in the firms revenue following the change in the exchange rate?

Total sales abroad: 20000 x 4 euros = 80000 euros Pound amount = Euro amount x ER Before ER change: 80000 x1.13 =90400 pounds After ER change: 80000 x 1.08= 86400 pounds 864-904 = -4000 pounds Therefore, rev...
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Answered by Josh R. • Economics tutor
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