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Solve x^2 + 4x + 4 = 0

To solve this equation we have two different methods: 1) We can solve this method 'by hand' and is done by knowing how to factorise the quadratic and is done by looking at the equation given to us to find hi...
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Answered by King Him C. • Maths tutor
5073 Views

Make x the subject of the equation y=(2(1+x))/(3x-1)

This might be hard at first, but if you work through step by step you'll get there! Start by getting rid of the fraction, multiply both sides by (3x-1) to get y(3x-1) = 2(1+x) Multiply out the brackets: 3yx-...
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Answered by Abigail C. • Maths tutor
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What are some example of global commons?

First of all understanding of what a common space is is crucial for looking at examples of those that are global. A classic example of a common area is common grazing land within a community but the question...
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Answered by Katie J. • Geography tutor
37796 Views

Explain what the stages of protein folding are and how the protein is held in its 3D shape

Break this question down into the four stages: primary, secondary, tertiary and quarternary and for each one describe the structure and what the non-covelant interactions are that hold the protein together. ...
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Answered by Abigail C. • Biology tutor
121107 Views

An equilibrium between hydrogen and nitrogen to make ammonia. Explain what would happen to the amount of product if a) pressure was increased b) temperature was increased c) a catalyst was added. Energy change -92KJ/mol

This is quite a complicated sounding question but it is actually quite simple if you break it down! Start by writing a balanced equation for the reaction: 3H 2 (g) + N 2 (g) => 2NH 3 (g) Now you can see t...
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Answered by Abigail C. • Chemistry tutor
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