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We know to find roots of any quadratic equation we use the quadratic formula, [-b +- (b^2 - 4ac)^(1/2)]/2a where a=2, b=6, and c=7.

Plug these values in and we obtain, [-6 +- (-20)^(1/2)]/4. [Remem...

In order to improve your Italian reading skills, you must improve your comprehension skills first, which means that you have to know how to find in a written text the information that will help you to ans...

The ideal gas law is PV=nRT, and we know that we can achieve the molar mass through the relationship of; n=m/mr. When using the ideal gas law it is essential that we use SI units before we begin plugging ...

The passive is used more often in English than in Spanish. In Spanish active sentences are preferred in most cases. For example: She was bitten by the dog is most naturally expressed in Spanish as El perr...

It can be tricky to know how to recognise the subjunctive tense, particularly since it is rarely used in English! Rather than referring to the subjunctive as a "tense" it is better to understand...