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Spanish, unlike English, has two different past tenses, the simple past, or preterite, and the imperfect. The two have different meanings and are conjugated differently. A verb in the simple past means that ...

the aim of finsing the inverse is making x the subject. To start we need to multiply both sides by: (x-1), giving us:y(x-1) = 2x+1now we need to expand the brackets:yx - y = 2x+1now gather all the x componen...

To find the inverse we're wanting to make x the subject. First start by multiplying both sides by (x-1), this gives us y(x-1) = 2x+1. Expand the brackets giving yx - y = 2x+1. Gather all the x components ont...

We'll use a variety of exercises to improve your essay techniques. As well as looking at examples of well written essays, we'll look at your own work to see if you can spot your own areas of weakness to work...

Ca plagioclase forms early meaning that it settles down through the magma body and forms in the lower part of the intrusion and solidifies. Na rich plagioclase forms later so is only present in the middle an...