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How do I find an area in m^2 when I'm given lengths in cm?

its tempting when we're given a length in cm - let's use a radius for example - to simply square the number of cm. However this can lead you into traps. Take a circle with radius 5cm. We know that A=pi r^2. ...
LM
Answered by Lauren M. • Physics tutor
3147 Views

f(x)=x^3 + x^2 -10x +8 show that (x-1) is a factor of f(x), Factorise f(x) fully , sketch the graph of f(x)

f(1)=0 f(x)=(x-1)(x+4)(x-2)
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Answered by Deborah A. • Maths tutor
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What is deontology and how is it different from utilitarianism?

Deontology and utilitarianism are two sets of theories that attempt to answer the question: how should I (we/you) act? They are the most famous of the four sets of theories that try to give us rules for ethi...
SP
35913 Views

What are the differences between eukaryotic and prokaryotic cells?

Eukaryotes, including animal and plant cells, are characterised by their membrane nucleus. They contain organelles such as mitochondria, which are located in the cytoplasm bound by membranes. Eukayotic cells...
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Answered by Jess W. • Biology tutor
10652 Views

What causes the resting potential in a neurone?

A neurone which is not conducting a nerve impulse has a negative charge of -70mV compared to the outside environment; there is a potential difference across the membrane. This is partly caused by movement of...
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Answered by Katherine D. • Biology tutor
5571 Views