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Find two values that multiply together to make 24, and add together to make 11 List the factors of 24:24,112,26,48,3Here we can see the only numbers that add together to make 11 are 8 and 3, s...
In an exothermic reaction, energy is released from the system and into the surroundings, the system loses energy so the surroundings gain energy. The surroundings gain energy as heat and therefore there i...
One strength of using laboratories is that they are highly controlled environments. For example, in Milgram's study into obedience to authority, the behaviour of the experimenter can be controlled, by hav...
First we must ensure the equation is in a form that is easy for us to plot!This means we equate the quadratic to 0 by shifting the -2 to the other side. We do this by adding +2 to both sides.Now, we draw ...
Use cosine rule to find the length of BD then use this with the sine rule to find length AD, will be more obvious with the diagram on the whiteboard.
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