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The important thing in this sentence is weight. Weight is measured in grams and kilograms. Where 1000 grams is equivalent to 1 kilogram. Therefore we can eliminate B 2 litres , D 200 mm. The other ...

When we come across questions like this, we expand by multiplying everything in the first bracket by everything in the second bracket. An easier way of doing this is rewriting the question like: x(3x+4) +...

To find the "n" in this sequence we need to calculate the difference between the terms So the result will be... n+6

To solve this inequation:1) Group all the exes in one side and the numbers in the other one... 5x > -52) Solve x... x > -13) Result: (-1, ∞ )

May look hard at first but once understood is simple.Question is asking to add two functions together.Firstly we begin by calculation f(2x) We know that f(x) = 5 – x, to find f(2x) we replace the x by 2xT...