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What is the centre and radius of the circle with the equation x(x-2)+y(y+6)+4=0 ?

x(x-4)+y(y+6)+4=0x^2-4x+y^2+6y+4=0x^2-4x+4+y^2+6y+9=9(x-2)^2+(y+3)^2=9=3^2centre (2,-3) radius 3
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Answered by Lauren W. • Maths tutor
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Discuss the following statement in light of ‘Dracula’: Women must either conform to society or face social expulsion.’

Conservative ideals of women appraise conventional piety to encourage such ideology, and in doing so, naturally demonise any contrary versions of womanhood to the status quo. The archetypal chaste women, at ...
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Answered by Iesa K. • English tutor
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In what ways did Germany contribute to the outbreak of WW1

Germany was an aggressive power during the July crisis of 1914. Austrian diplomats noted that the German government was pushing to use the assassination of Franz Ferdinand to start a war of aggression with F...
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Answered by Sam B. • History tutor
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what are the seven necessary functions of a living organism

There are 7 characteristics shown by all living organisms which can be remembered using the acronym MRS GREN.They are: movement, respiration, sensitivity, growth, reproduction, excretion and nutrition.
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Answered by Ashni S. • Biology tutor
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What is the role of the heart in the formation of tissue fluid?

Ventricles contraction produce high blood pressure.This forces water and other substances out of the capillaries
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Answered by Aya A. • Biology tutor
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