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There are "n" sweets in a bag, six are orange and the rest are yellow. If you take a random sweet from the bag and eat it. Then take at random another one and eat it. The probability of eating two orange sweets is 1/3. Show that n²-n-90=0.

We have: n= total of sweets 6= orange sweets (6-n)=yellow sweets (We use 6-n beacuse we know that if 6 sweets are orange, the rest must be yellow, so yellow sweets= (total of sweets-orange sweets)) If the pr...
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Answered by Raquel L. • Maths tutor
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When do I use the auxiliary verb "essere" and when "avere" in compound tenses?

When building a compound tense it is necessary to use the auxiliar "essere" when the verb is a reflexive verb, and/or when the verb is intransitive ( it cannot take a direct object). It is instead ...
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Answered by Alice B. • Italian tutor
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How is abnormality defined?

Abnormality is a fluid concept that can mean different things to different people in different cultures and society. However, this subjective term can be operationalised by the DSM. This categories abnormali...
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Answered by Perah M. • Psychology tutor
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When should I use "um...zu" and when "damit" when introducing a final subordinate sentence?

Both the conjunctions "um" and "damit" introduce a final subordinate sentence. The only difference between the two lies in the subject of the sentence. When using the conjunction "um...
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Answered by Alice B. • German tutor
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Women are either innocent victims or sinister predators or significantly absent. To what extent is this true of ‘Macbeth?’

In Shakespeare play Macbeth, Shakespeare puts a focus on the male characters leaving the female characters in the play being presented in several ways, including women being presented as innocent victims, si...
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