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The main difference between the two types of cell is that prokaryotic cells have no (membrane-bound) organelles. This means that the processes that usually happen in organelles take place in the cytoplasm...

Let the parabola be y=x² and let the family of lines be y=2x+c, in order to study the intersection points we need to consider the second order linear system given by having the two equations ab...

After the First World War, Germany had been left in great industrial and economic crisis, which was caused by the physical disasters of the war, as well as the sanctions imposed to the German government b...

By multipying across and using some trigonometric identities we can turn this in to a much simpler quatratic which can be solved using the quadratic formula. This step can be simplified by using the subst...

Mode is the value that occurs most - which is 7. Median - put numbers in numerical order and find the middle number, which is 11. Mean is the average value so add up all the numbers and divide by the tota...