To find the equation of a parabola, you need some specific data points from the parabola. The following 2 scenarios describe this process. SCENARIO 1 – YOU […]More…
Category: Rules & Formulas (R&F)
Compound Measures – Speed (Distance/Time)
Speed is probably the easiest of the 3 compound measures to understand (the other 2 compound measures are Density and Force). We all know about the speed […]More…
Surface Area of Solid Shapes
A reference page showing the formulas of the surface area of some common basic and composite shapes, including: Rectangular Prism Triangular Prism Pyramid Cone Sphere Cylinder Composite […]More…
3D Shapes
Below are the most common 3D shapes you will come across and with 3D shapes, you need to be able to work out the volume of these […]More…
(R&F) Algebra – Indices
Working with indices can sometimes be tricky if you don’t know the specific rules of indices. This post shows what the common indices convert to and also […]More…
(R&F) Numbers – List of Prime Numbers
This is the list of Prime numbers between 1 and 100. A reminder that a prime number is a number that has only two factors: 1 and […]More…
(R&F) is it or is it not a Prime Number
Have you ever wondered whether there is a way to determine whether a number is a prime number? Well! for numbers less than 285 follow these steps:
(R&F) Geometry – Sine & Cosine Rules
These 2 rules are used with non-right angle triangles. Which one to use will depend on the data you are given.
Compound Measures – Density (Mass/Volume)
Next on the compound measures is Density. This measure give you the mass of the material PER UNIT OF VOLUME. In terms of formula for the density, […]More…
Recurring Decimals to Fractions
Writing numbers containing recurring decimals into fractions involves a few steps. These are described here using a few examples.
Multiplication – Lattice Method
There are few ways to multiply numbers. The method shown in the video below is one of them
(R&F) Algebra – Expanding Brackets
Expanding brackets in algebra means you need to multiply the terms inside the brackets by the term (or terms) that are outside the brackets. Below are some […]More…
(R&F) Algebra – Quadratic Formula
The quadratic formula allows you to work out the solution to a quadratic equation when factoring is not possible. Example 1 – Two solutions Example 2 – […]More…
(R&F) Standard Form Notation / Scientific Notation
It is called standard form notation because no matter how big, or small the number is, it is always written in a specific way. For this reason […]More…
(R&F) Geometry – Parallel Lines (z-angles/f-angles/c-angles)
When faced with 2 parallel lines and a transversal – that is a line that crosses both parallel lines – you automatically end up with a number […]More…