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For this question we need to remember that the equation to calculate the area of a circle is pi times the radius squared. The radius of a circle is half it's diameter, therefore the radius of the semi-cir...
Chain Rule- Differential of the bracket x the initial power of the bracket x the initial bracketpower-1 --- So Differential of bracket is 42x2- 6x--- Answered by • Maths tutor2986 Views
(Apologies I don't have the relevant diagrams here so this reads longer than it actually is on paper)1) First it's important to establish that the prior knowledge is there before expla...
This is a slightly advanced GCSE question, involving multiple steps. Each step is quite simple however.First, set out the known variables. Note that the 8 inches is the pizza diameter.r = 8*2.5/2 = 20/2 =...
This problem can be solved by using elimination.Label 3x + y = 11 as equation (1) and 2x + y = 8 as equation (2).We first want to eliminate one of the variables so that we can then reach a value for the o...
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