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Describe how a student wouldn’t test for the presence of lipid molecules in a sample of food

The student would conduct an emulsification test. First of all, crush the sample to increase is surface area. Next add the sample to a test tube of ethanol, allowing for he sample to disolve before adding a ...
TS
Answered by Tobias S. • Biology tutor
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A useful practice: how to determine the number of solutions of a system of linear equations beforehand

We have a system of n linear equations incorporated by A x = b , with A being a n x p matrix of numeric coefficients, x being a p-dimensional column vector of variables and b being a numeric n-dimensional co...
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Express 1/(x(1-3x)) in partial fractions.

1/(x(1-3x))= A/x+ B/(1-3x) 1= A(1-3x) + B(1-3x) when x=0 1=A when x= 1/3 1=B/3 so B=3 1/(x(1-3x))= 1/x + 3/(1-3x)
LB
Answered by Laura B. • Maths tutor
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Translate the following text into Spanish.

Text to be translated: Of all the problems that worry teenagers nowadays, it could be said that unemployment is the worst since it often leads to poverty and anti-social behaviour. However, a friend of mine,...
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Answered by Laura B. • Spanish tutor
3562 Views

How do you know when to use the subjunctive in the present tense?

I find that the acronym WEIRDO is always the perfect starting block for deciding when the use of the subjunctive is appropriate. W - wish - when a desire is expressd in the sentence from one person onto anot...
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Answered by Alex R. • Spanish tutor
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