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Tree diagrams can be used to work out probabilities when you have a combination of events happening. The end of the branch displays the outcome of an event and the probability of this event occurring is w...

Direct object pronouns are used to replace the direct object in the sentence. This is the object which has a verb done to it. For example: Doy el libro a Juan (I give the book to Juan). The book is...

Women are portrayed as follows:Elizabeth Bennett is unique in her wilful nature and dominance, which acts surprisingly as an attraction to men who propose (e.g. Fitzwilliam and Darcy) yet is a terror to h...

If osmosis is the movement of water across a partially permeable membrane, then chemiosmosis is the same, but for chemicals. Let's consider the mitochondria, which has a double membrane envelope, and let'...

This I'd set as a higher tier GCSE problem.To begin with I'd draw the shapes so that it's clear what we're working with. Then I'd ask my tutee to work out the areas of the individual shapes--these will be...