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Find the stable points of the following function, determine wether or not they are maxima or minima. y= 5x^3 +9x^2 +3x +2

Start by differentiating the function to find points where the gradient is 0. so dy/dx = 15x^2 + 18x + 3 We can use the equation for finding the roots of a quadratic here, set a=15, b=18 and c=3 and proceed....
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Answered by Yusuf C. • Maths tutor
4625 Views

How does muscle contraction work?

So the muscle is made up of 2 muscle filaments, a thick filament called myosin and a thin one actin. This can be remembered by actin having 2 syllables which is less than myosin which has 3 so actin is thinn...
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Answered by Sonam T. • Biology tutor
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Explain each of the following: - How moral decisions are made using Rule Utilitarianism - Mill’s ideas concerning the importance of the quality of pleasure

-RULE UTILITARIANISM Moral decisions according to Rule Utilitarianism follow general maxims or rules which when adhered to achieve the maximum amount of pleasure or happiness. General rules such as 'do not l...
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12185 Views

Describe and explain the Nitrogen Cycle.

For a question like this it is very useful to draw a diagram of the cycle linking to where it occurs to aid visual learning and retention of each stage. For example, I like to teach this by showing the cycle...
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Answered by Lucy W. • Biology tutor
16276 Views

What is the purpose and structure of a cell membrane?

The purpose of the cell membrane is to make the cell into a closed compartment that is separate from the extracellular (outside) environment. It also works as a selective barrier that can allow the import or...
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Answered by Olivia L. • Biology tutor
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