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One of the most important things to remember when writing exam responses is to plan your answers briefly before you start writing, so you have at least a vague idea of where you are going throughout the e...

Answer: 25. Explanation: In the binary system, each digit can be one of two values: 0 and 1. That's two possibilities ('bi' is Latin for 'twice'). In the decimal system, each digit can take any value from...

A quadratic equation of the form ax^2+bx+c can be solved by factorizing the quadratic equation but before that you must check that b^2-4ac>0 so that the solution is in real numbers and not in complex n...

A random sample is a small subset of participants drawn from a larger population where each individual has an equal chance of being chosen. This method is representative so results can be generalised to t...

To begin with, your essay should open with a strong introduction that clearly outlines what you will be discussing in the coming paragraphs. For example, you may choose to dedicate a paragraph to each of ...