What should I do if I can’t answer this question?
Remember you can never be marked down for what you right. Time is of the essence so skip the question and come back to it. You need to identify the topic of the question and you should do everything you know in relation to that topic with the problem. Method marks are always available so write down every step.
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All answers ▸simply fully (2x^2 -3)^2 - (2x^2 + 2)^2
10 The table gives information about the heights of 50 trees. Height (h metres) Frequency 0 < h - 4 ,8, 4 < h - 8 ,21, 8 < h - 12, 12, 12 < h - 16, 7, 16 < h - 20, 2. Work out an estimate for the mean height of the trees.
How do you find the original price of a sale item when a percentage decrease has been applied?
Find the solutions to the simultaneous equations