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In Arabic, sentences are divided into two types: 1. Nominal Sentence which starts with a noun. e.g. Peter is calm: بيتر هادئ 2. Verbal Sentence which starts with a verb. e.g. Peter came: جاء بيتر Where: Pete...

There is no actual real definitive answer; for example, some people may choose to exclude an introduction and include an executive summary instead. The important thing is to check with whoever is marking it!...

The key here is to eliminate one of the variables; it doesn't matter whether we start by trying to get rid of x or y we will arrive at the same solution. For us to eliminate either x or y it is easiest to fi...

In order to solve this question, we need to use the chain rule when differentiating. The chain rule formula is dy/dx= (dy/du) (du/dx). Let u=1+x 3 Differentiating with respect to x gives du/dx=3x 2 We now ha...

Cell walls provide plant cells with protection and structure. Protection may be from adverse conditions or from biotic threats like fungi or bacteria. The structure of the plant is dependent on the presence ...