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Simultaneous equations pop up all the time in maths, science, and engineering, so being able to solve them is really useful. Although they can look a bit daunting at first, the same general rules apply...
To start with, we should work out all of the quantities we need:
Mass of Trolley A: MA= 5kg
Mass of Trolley B: B weighs 10kg more tha...
'Moraine' is a term given to pieces of rock transported by a glacier, and can my divided into four different categories.
'Ground Moraine' is a collection of rock dragged underneath a glac...
The imperfect tense is used in Spanish to describe something in the past or to talk about something that happened often or habitually, for example going to school every day.
It has two di...
Most verbs use avoir, but there are a specific group of verbs that take être as their auxiliary verb in not just the past tense, but in all of the compound tenses (such as the pluperfect tense).
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