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Solve the following simultaneous equation: x^2 + y^2 = 9 X+y=2

X 2.87 or -0.87y-0.87 or 2.87
RM
Answered by Ryan M. • Maths tutor
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Outline three ways in which family structure may affect achievement (6 marks)

This is a 6 mark question, so for a student to achieve all 6 marks:List 3 factorsExplain each factor Here are some possible factors and explanations:Single parent families may lack resources needed to give c...
AA
Answered by Aadam A. • Sociology tutor
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"How do I prepare for my Oxbridge Application and Interview? What was it like?" - Anonymous, The Student Room

Oxbridge tutors consider each application individually, and are merely searching for students who possess intellectual curiosity of the subject matter and whether they see signs of potential. Therefore I'm g...
NG
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Expand and simplify (x-5)(3x+3)

Begin by expanding brackets using FOIL (first, outer, inner, last) method (demonstrated on whiteboard to make clear). Multiplying the first term of each bracket gives 3x 2 , multiplying outer terms gives 3x,...
CJ
Answered by Christopher J. • Maths tutor
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What is gaseous exchange, and describe the mechanism of inspiration at rest

Gaseous exchange is the process by which one gas is exchanged for another, and occurs via diffusion between air in alveoli and the blood capillaries surrounding them. Inspiration is the process by which air ...
Answered by • Physical Education tutor
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