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Label your equations 1 and 2 respectively. Make y the subject of equation 2 by taking away 3x from both sides and multiplying both sides by -1, to get y = 3x - 8. Now substitute this into equation 1 (i.e....

Our concept of God is that of a being greater than which none can be imagined. Since we are able to imagine God at all, then we can see the God exists as an idea in the mind. However, it seems that a thin...

Every history essay aims to answer a question. You may be asked to evaluate the importance of one factor, or to balance the importance of many, in an historical event. Sometimes you may be asked to ‘discu...

To find the values for 45 degrees, we construct a right angled isosceles triangle, which has two sides of equal length. We can say that these sides are 1 unit long, and so we can figure out the value of t...

We know that the number of undecayed nuclei, N, is given by N=N₀e^{-lambda t}. From this, by setting N=N₀/2 we know at this point that t= T_0.5 (the half life) and ...