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When you're working with fractional indices, I find the following rhyme really useful:"Fractional indices are like a flower: the bottom's the root, the top's the power".We have a cube root <...
First, look at the key information from the question and form an equation for each of the first two sentences. These equations are as follows (let a represent the number of apples and b represent the numb...
For a question like this you should aim to eliminate either x OR y from one equation in order to deduce the value of the other. 1) 2x +5y + 5= 0 , 2) 2y + 31= 5x Rearrange equation 2) so that 2y +31...
Active transport and diffusion.Glucose is transported by active transport, against the concentration gradient, from the gut into intestinal epithelial cells. Whereas glucose is transported by facili...
Take each side of the cuboid as an algebraic expression and multiply each by 2 to account for both sides of the shape. For example, (x)(x-4), which could be expanded to x2 -4x, and then multipl...
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