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How do you solve simultaneous equation where one of them involves powers?

Example: y - 3x = 2 , x2 + y2 = 4 y= 3x + 2 x2 + (3x+2)2 = 4 10x2+ 12x + 4 = 4 10x2+12x=0 x(10x+12)=0 x=0 or x=-1.2 y=30 + 2 = 2 (0,2)...

LF
Answered by Luke F. Maths tutor
2400 Views

Explain what is meant by qualitative data

Qualitative data takes a narrative form that is non-numerical, e.g. a diary entry.

LK
Answered by Lizzy K. Psychology tutor
1424 Views

Explain one strength and one weakness of the working memory model

A strength of the working memory model is that it is supported by case study evidence, for example KF. He was able to remember visual stimuli but not verbal stimuli, which supports the working model of me...

Answered by Psychology tutor
13427 Views

Explain what is meant by locus of control (4 marks)

Locus of control is the extent to which a person believes they have responsibility over their own actions or behaviour. It is often measured on a scale, where a person with an internal locus of control be...

Answered by Psychology tutor
2639 Views

Explain the relative resistance to bromination of benzene compared to phenol and compared to cyclohexene.

Within benzene the electrons within the pi-system are delocalised. This means the electrons are spread across the whole ring and has a lower electron density making it less susceptible to electrophilic at...

Answered by Chemistry tutor
11267 Views

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