Top answers

How do you do integration by parts?

When you see a complicated product, split it into the form u.v', where u and v' are algebraic expressions such as x^2. You can then use the formula: uv'=uv-integral(vu') which you would take between any limi...
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Answered by Andrew B. • Maths tutor
3455 Views

Using examples, explain the reasons why rural-urban migration occurs.

Rural-urban migration - the movement of indivdiuals from rural to urban areas - is the product of a plethora of push and pull factors, as exhibited by Lee's push-pull theory. Migration from rural to urban Br...
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Answered by Edward H. • Geography tutor
35071 Views

what are the different types of capital expenditure appraisal?

Capital expenditure appraisal is the evaluation of investment opportunities. 1. Payback method = The payback method involves calculating the payback period. This is the amount of time it takes a business to ...
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Answered by Cecily Y. • Accounting tutor
14913 Views

How do you calculate the area of a circle?

The equation is 2πr. That is 2 x pi x the radius (not the diameter!)
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Answered by Nick O. • Maths tutor
3544 Views

When should you use an apostrophe?

There are two situations when you can use an apostrophe: contractions and for possession. I will start with contractions as this is the easiest. A contraction is when you squash two words into one shorter wo...
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10389 Views