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You can separate any surd into factors of the number that is being square rooted, for example when you have a surd such as √ 12 it can be rewritten as √ 2 X √ 6 or √ 3 X √ 4. This is very useful when we w...

To begin with, this question requires you to differentiate the curve y = 4x² + 7x +1 in order to find the gradient. To differentiate this function y in respect to x, we need to reduce the power...

The phenomenon you're describing is called 'Pythagoras theorem'. Let's go through it together. You have a right angled triangle, with the hypothesis and one side given. The pythagoras theorem gives you a ...

l(s) = xl(r) = 4xp(r) = 14xP(r) = 8x + 2w = 14xw = 3x

16% of £435 is equal to 10% of £435 + 6% of £435.
10% of £435 = 435 = £43.56% of £435 is 6 x 1% of £4351% of £435 = 435/100 = £4.35£4.35 x 6 = £26.1
16% of £435 = £43.5 + £4.35 = £47.85