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Sketch and label the graph of y=x^2 -5x+6

First we can try and factorise the expression:So we want to find 2 numbers that multiply to 6 and add to -5... after some thinking we get -2 and -3. The factorised expression is y=(x-2)(x-3). To find where t...
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Answered by Eamon G. • Maths tutor
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How should I structure an essay?

1. Introduction- set out 'big ideas' and your argument which then should be evident as the essay progresses. Shouldn't be too wordy, short concise and clear. 2. Paragraph One e.g.- themes within play/novel/p...
Answered by • English Literature tutor
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Solve this simultaneous equation: 5n+t= 21 n-3t=9

5n+t= 21n-3t=9 n= 9+3t5(9+3t)+t= 2145+15t+t= 2145+16t= 2116t= -24 t= -1.5 5n-1.5= 215n= 22.5 n= 4.5
Answered by • Maths tutor
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There are 4 blue balls, 2 red balls, and 5 green balls in a bag. James removes one ball and does not replace it. James removes a second ball. What is the probability that both balls will be the same colour.

Total number of balls = 4 + 2 + 5 = 11 (this is our denominator for first draw)Numerator is the number of each colour. When we remove a ball the denominator and numerator for that colour decrease by 1. P(2 b...
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Answered by Caleb W. • Maths tutor
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How should I effectively use my reading time prior to a listening exam?

Before the audio track fully begins, you are given five minutes to read through the paper. It may not always make sense as to why you have this time in the exam, but it is definitely there to help you! First...
Answered by • Spanish tutor
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