Top answers

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
14967 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
3582 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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10497 Views

What is the fluid mosaic model?

The fluid mosaic model describes the composition and function of cell membranes. Membranes are made of lipids and proteins (and a few other bits and bobs but don’t worry about that here). The lipids and prot...
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Answered by Nick O. • Biology tutor
4541 Views

How do genes affect illness?

A gene is a segment of DNA that carries the instructions for a specific trait, such as eye colour or how well you can digest food. When DNA is damaged or is copied incorrectly this changes the gene and so th...
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Answered by Nick O. • Biology tutor
3122 Views