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Circle C has equation x^2 + y^2 - 6x + 4y = 12, what is the radius and centre of the circle

The equation of a circle is (x-a)^2 + (y-b)^2 = r^2, where (a,b) is the centre of the circle, and r is the radius. To condense our equation into this form we have to use the technique of completing the squar...
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Answered by Haren B. • Maths tutor
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Outline the key features of the ontological argument

The aim of this question is to simply outline the main features of the ontological argument. This requires very little analysis. Rather, the point is to clearly and concisely explain the features of the onto...
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4754 Views

Why do price of exchange rates increase when interest rates increase? What does it mean that a currency is strong?

When the interest rate is high in a country it encourages investors to convert their money, e.g. into pounds, and invest their money in the country. The price change can be traced back to basic supply and de...
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Answered by Bence L. • Economics tutor
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Conditionals

Real/Unreal
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Answered by George C. • Latin tutor
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On what grounds do conservatives justify social hierarchy?

A social heirarchy consists in differences throughout society of factors such as status, income, and involves widespread inequality. Conservatives, to a far greater extent than those on the left of the polit...
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Answered by Henry B. • Politics tutor
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