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Firstly, we know that it is an isosceles triangle, meaning that 2 of its sides are equal. In this case, the uneven side is given as x+4, so we can assume that the triangle has 3 sides: AB= X+3BC= X+3AC= X...

When adding fractions we need to make sure that we're adding numbers that are in the same proportion.Take for example 1/2 add 1/2, if we simply added the numerator and the denominator we would get 2/4 - w...

An enzyme is a biological catalyst that ensures important certain chemical reactions can take place. They speed up the rate of a reaction without being used up or changed. Maltase is an example of an enzy...

When we consider writing a comma, it will usually be just before the conjunctions.
We DON't use commas before: i, oraz, tudzież, lub, albo, bądź, czy, ani, ni. Also when 'a' is used as an equivalent...

INTRODUCTION: It is crucial to set out a clear argument and set the tone of your essay. This does not need to be long and you do not want to dedicate too much time to this in the exam, but you should make...