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How would I answer the following exam question: 'Describe the reasons why Stalin became the Russian leader in 1924.' (5 marks, Eduquas)?

For this question, you are required - according to the mark scheme - to give two separate factors that explain why Stalin became leader, demonstrating specific subject knowledge for each factor. The two f...

Answered by Sofia E. History tutor
4027 Views

Given that xy=2 and y=3x+5, find x and y. Do not use trial and improvement.

There are a few ways of solving these simultaneous equations, but most of them involve substitution. Perhaps the most intuitive substitution to make is the second equation (y=3x+5) into the first one (xy=...

Answered by James P. Further Mathematics tutor
4091 Views

How would I simplify (3x^2 − 8x − 3)/(2x^2 −6x) fully?

The above sample question was taken from the 2018 GCSE Maths Higher paper.First we simplify the numerator, 3x^2 - 8x - 3, which is a quadratic written in the form ax^2 + bx + c so we can simplify it by fa...

Answered by Jude M. Maths tutor
5024 Views

How does transcription work?

Transcription is the first step of protein synthesis and occurs within the nucleus of the cell. Within the cell's nucleus is the DNA. Firstly an enzyme called DNA Helicase 'unzips' the two DNA strands sep...

Answered by Charlotte K. Biology tutor
2510 Views

GCSE or A-level Maths: How can I find the x and y intercepts of a cubic function?

Assume we have the function:
y = x ( x2 + 8x - 9)
This function is known as a cubic function as when multiplying out the brackets, the highest function of x would be x3.Not...

Answered by Ahmed M. Further Mathematics tutor
9775 Views

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