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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...
RL
Answered by Raquel L. • Maths tutor
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What is a "Nebensatz"?

A "Nebensatz" is a part of a sentence which cannot sussist by itself, which lacks of any meaning if not related to the "Hauptsatz" it is refering to. There are many different kinds of &qu...
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Answered by Alice B. • German tutor
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Qu-est-ce que tu aimes faire pendant tes temps libres?

Pendant mes temps libres, j'adore faire la natation. Je m'entraîne entre 7 à 9 fois par semaine, et ma nage préférée c'est la brasse. En plus, pendant le weekend j'aime aussi passer du temps avec mes amis de...
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Answered by Dayna R. • French tutor
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The perimeter of a square is sqrt(120) cm, what is the area?

A square is a shape with 4 equal lengthed sides. The perimeter is the sum of the lengths of the sides. Therefore for a square, the length of one side is a quarter of the perimeter. In this example the perime...
HM
Answered by Harry M. • Maths tutor
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How do I approach a History essay exam question?

Knowing the course content is essential to exceed in History, but exam technique is equally vital in achieving a good grade. At GCSE level, there must be a strong focus on the question throughout your respon...
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Answered by Lewis N. • History tutor
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