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Solve: sin(x) = 0.5, in the interval of 0 < x < 360 degree.

sin(x) = 0.5 x = arcsin(0.5) x = 30 degrees , 150 (180-30) degrees
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Answered by Priyanka A. • Maths tutor
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Explain the general formula for a sraight line?

y=mx+c m = gradient of the line c = the y intercept x and y are variables
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Answered by Ndaba M. • Maths tutor
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Describe what you would see when a piece of potassium is placed on water. Why does this happen?

THe potassium would move around on the water and fizz. This is because it is an alkali metal that reacts with the water. 2K + 2H2O --&gt; 2KOH + H2. The fizzing is the result of this reaction. Discussion reg...
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Answered by Ndaba M. • Chemistry tutor
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How do you write a good introduction and conclusion?

In an exam you shouldn't spend too much time on your introduction and conclusion as most of your marks come from the main bulk of the essay. A good place to start with an introduction is looking at the key w...
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Answered by Charlotte N. • English tutor
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Where does the direct object pronoun go in a sentence?

In Spanish, the direct object pronoun replaces the object you are talking about. In a sentence, it is always placed before the verb. For example, '(Tú)llevas el libro' = you carry the book. This becomes, '(T...
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Answered by Elena P. • Spanish tutor
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