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A quadratic expression is of the form ax^​2+bx+c. It is often useful to know what values of x will make the expression equal to 0; these are known as the roots of the equation. An easy way of...

Current is the rate of flow of charge in a circuit; you can imagine the flow of electrons as water flowing through a pipe. If the pipe splits into two, some of the flow will go through one pipe and som...

Parametric equations are a set of equations which both depend on the same variable, such as t. An example of this would be:

x = 2t²​+1 and y = t^​4​-2

A...

Countries they operate in

+ Provide employment opportunities in developing nations - Coca-Cola factory in Egypt employs 12000 people and created 120000 indirect jo...

Words ending in a vowel, ‘n’ or ‘s’ are stressed on the penultimate syllable.Words ending in a consonant (not ending in ‘n’ or ‘s’) are stressed on the last syllable.Words that break these two rules have ...