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(A-Level) Find the coordinate of the stationary point of the curve y = 2x + 27/x^2

Since we are looking for a stationary this means the derivative will be equal to 0, so we will have to differentiate the equation. When we differentiate ( y = 2x + 27/x^2 ) we get ( dy/dx = 2 - 54/x^3 ). Bec...
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Answered by Vlad B. • Maths tutor
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What might happen to the rate of glucose production as the temperature of a solution of sucrose and (human) sucrase was raised from 33°C to 43°C and why?

Sucrase is an enzyme that breaks sucrose down to its constituent monosaccharides – glucose and fructose. At 33°C the enzyme will not be working at its’ optimum, as it has evolved to work most efficiently at ...
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Answered by Miranda M. • Biology tutor
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What is the difference between the different demonstrative pronouns?

First of all, we need to define what a demonstrative pronoun is. A demonstrative pronoun takes the place of a noun in a sentence. When discussing demonstrative pronouns in Spanish, proximity (how close we ar...
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Answered by Hari P. • Spanish tutor
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Outline and explain three ways religion can bring about change (9 marks)

Firstly, Neo-Marxists highlight how religion can act as a force for change, rather than acting as ‘opium’, as outlined by traditional Marxists. Indeed, Maduro argues that religion has some independence from ...
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Answered by Cara M. • Sociology tutor
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Compare and contrast the effectiveness of the Senate and the House of Lords in holding their respective executives to account (25 marks)

Introduction: Both the US and UK systems of government are bicameral, meaning they have two chambers. The Senate is the upper chamber in the US, while the House of Lords is the upper chamber in the UK. Howev...
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