Pythagorasandthat.co.uk Website Review

Sometimes you might be asked to factorise expressions. Factorising is the opposite of multiplying out brackets - i.e. putting an expression These are equations you need to solve at the same time...but there's two types you could get..one of which is probably the toughest thing These are a bit like equations....but with one really big exception! The Symbols > Means greater than < Means less than <≥ Mean.. This is one of the trickiest things you have to do. Basically you have to express a quadratic as a squared bracket with a number on the end This solves any equation in the form ax² + bx + c = 0. It's usually given in an exam...but you should learn it and how to use it. Thi.. These two are easy to work out if you remember the triangle trick: DensityDensity is mas* per unit volume. It is written, for example, Formulas...formulas....formulas... Volume Of A CuboidSimple! A cuboid is just a regular block. The volume is just length times height ti.. If dealing with 3D shapes you might be asked to find the surface area of a shape. One way may be to look at its net. Nets A net is jus.. Sorry! It's another page of tedious formulae. Area Of A TriangleHalf the base times the height.0.5 x h x bArea Of A ParallelogramBase There are more rules about a circle than you would expect. Learn them all though and you'll be able to outfox the examiner. A Tangent And.. Parallel lines are always the same distance apart (equidistant) and will never meet. Examiners love to throw in a question or two about All Probabilities Are Between 0 And 1 A probability of 1 means something is certain to happen A probability of 0 means something d.. Scatter graphs tell you how closely two things are related....which is called correlation.If you can draw a line of best fit on your Histograms are like bar charts but the bars can have different widths...and the area of the bar shows the frequency...sounds Cu*ulative frequency means you just keep a running total as you go along. Example: The table below shows the lengths of 32 bananas.