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x^2=y+1 therefore 6y+2y+2=6 therefore 8y=4 y=0.5 sub in to either equation x=(3/2)^0.5

standard form is a way of writing very large numbers or very small numbers in a condensed form. E.g. 1,600,000,000 can be written as 1.6x10^9 

Yes, in order to maximise the amount of marks you obtain you must write down all of your working as often the answer is only worth 1 mark whereas the working out makes up the rest of the marks. Always sho...

x² + 5x = 5 Make equal to 0. x² +5x - 5 = 0 Recognise that you need to use the quadratic equation. (-b ± sqrt(b²-4ac))/2 sub in. (-5 ± sqrt(5²-41-5))/2...

Area of square : Base x Height.

Area of Circle: π x (Radius)².

Looking at the diagram we are given the dimensions of the base or he...