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What is the best way to revise for my Maths GCSE?

I believe that there is no better way to revise for Maths than to continually practice questions (especially those that you find most tricky!) The more you practise, the easier you'll find the questions beca...
AM
Answered by Alisha M. • Maths tutor
4334 Views

How do I solve this pair of simultaneous equations: 3x+y=7 and 3x-y=5?

Step 1: Eliminate the ‘y’ component from the equations by adding the equations together. This gives the new equation ‘6x=12’ Step 2: Find the value of x by dividing both sides of the equation by 6. This give...
AM
Answered by Alisha M. • Maths tutor
5002 Views

What are the differences between DNA and RNA?

-DNA is double stranded, while RNA is single stranded -DNA has the bases ATCG, while RNA has AUCG -DNA has the sugar base Deoxyribose, RNA has Ribose -DNA forms a double helix, RNA does not form a double helix
SK
Answered by Siddhesh K. • Biology tutor
3012 Views

To what extent is the desire to achieve social justice controversial?

Introduction: First define what social justice means: Social justice is defined as justice in terms of the distribution of wealth, opportunities, and privileges within a society. It can also be used to refer...
EG
5192 Views

Given the function y=f(x), where f(x)=(e^x-e^(-x))/2, find its inverse f'(x).

This is a very common IB-level question, which is solved with using the technique of a "disguised quadratic". The first thing we want to do in finding the inverse is swapping the places of x and y ...
EM
Answered by Edoardo M. • Maths tutor
18953 Views