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Show, by first principles, that the differential of x^2 is 2x.

First I would draw a Diagram of y=x2 on the x and y plane, for x>0. Then label a generic point as (x,y), then noting that as y=x2 we can then equate the sane point to (x, x2...

KJ
Answered by Kieren J. Maths tutor
3325 Views

Describe the multi-store memory model. (4 marks)

The multi-store memory model was proposed by Atkinson and Shiffrin (1968) and suggests that memory consists of three stores; the sensory register, the short term memory (STM) and the long term memory (LTM...

DB
Answered by Dan B. Psychology tutor
10173 Views

How did Tsar Nicholas II survive the 1905 Revolution? (6 marks)

The 1905 Revolution shook Tsar Nicholas' power, yet he survived the rebellion by using using two main strategies. Firstly, Nicholas conceded some degree of power to the Russian Parliament, known as the Du...

DB
Answered by Dan B. History tutor
31344 Views

Explain how temperature affects how enzymes work

Definition of enzymes: Biological catalysts that speed up the rate of reaction by lowering the activation energy , with no effect on equilibrium. They are proteins that have a specific shape . For the enz...

GR
Answered by Giulia R. Biology tutor
9906 Views

Solve the simultaneous equation: 2x + y = 18 and x−y=6

Check to see if the number in front (coefficient) of either the x's or y's is the same. In this case both the y's have the same coefficient so we do not need to make them the same.We are going to add the ...

CK
Answered by Chelsea K. Maths tutor
4643 Views

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