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How to solve simultaneous equations with a quadratic

Example. " Solve the simultaneous equations y + 4x + 1 = 0 y^2 + 5x^2 + 2x = 0 " We can rearrange the first equation to something that we can substitute into the second equation, for example y = -4...
TW
Answered by Tilly W. • Maths tutor
3838 Views

How do I analyse this piece of American World War Two propaganda?

In this famous piece of anti-Japanese propaganda, ‘This Is The Enemy’, the message to the American public of the early 1940s seems obvious at first reading, and yet contains layers of meaning. We will first ...
CH
Answered by Caroline H. • History tutor
3120 Views

Explain the process of semi-conservative DNA replication.

The enzyme DNA helicase breaks the hydrogen bonds between the two polynucloetide DNA strands causing the double helix to unzip, forming two single strands. Each original single strand then acts as a template...
BJ
Answered by Bardwell J. • Biology tutor
59048 Views

Explain why US Pressure Groups may use Direct Action to achieve their aims?

Intro: Pressure group- A group or body with a common aim trying to raise awareness and influence poicy making. Direct action is a tatic which draws in the attention of media, public and congressmen in the ho...
EL
9001 Views

To what extent do the separation of powers and checks and balances limit government in the USA?

The question asks to assess the effect to which both the separation of power and the checks and balances limit the whole government of the USA, not just its executive branch. Firstly, the separation of power...
JD
10448 Views