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The first step would be to multiply out the bracket. So, using this example we would times each item inside the bracket by 3. As a result we would get: 3x + 12 = 18 Then we would need to move the 'x' value t...

I am going to assume you know what an irrational number is, given that that should have been taught right at the beginning the topic of surds. When I talk about a “rational” number, here I mean “whole number...

Leaves have 4 main adaptations which enable them to carry out photosynthesis successfully. 1) Thin - this allows carbon dioxide to easily diffuse into the leaf cells 2) Transparent epidermis - this allows li...

Initially the momentum is zero. Due to conservation of momentum, the alpha particle and radium nucleus must gain equal but opposite momentum. The mass of the radium nucleus is greater than the mass of the al...

x 2 - 9x ≤ 36 1. Draw a graph. y = x 2 - 9x and y = 36 2. Find the points of intersection by solving x 2 - 9x = 36 x 2 - 9x = 36 x 2 - 9x - 36 = 0 (x - 12)(x + 4) = 0 Therefore, the lines intersect at x = 12...