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For a ball that has been thrown, it's height above the ground can be described by a quadratic equation of the time since it was thrown and gives a parabola.

The two real roots of the equation are t...

The nucleus is the most important organelle of the cell and acts like a blueprint for how all the cells in your body function. The nucleus also acts as a vault to hold the DNA securely.
The main func...

Government policies primarily affecting business consist largely of decisions affecting market regulation and public spending. For some businesses, higher than average levels of regulation are likely to b...

Whenever you see a problem involving an inequality (greater than or less than sign) it is really important to pause for a second before you go breaking any rules of mathematics. ...

This  method will only work if your x term is divisible by 2. For example x² + 6x + 12. 

You then use the halved x term (e.g. 3x) to complete the square. The beginning of your factorisat...