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x=0.81
Pressure is given by P=F/A, where F is force and A is area. Neither are given in the question, but A is the area of the cube in contact with the table; this is the area of one face of the cube, so A=L...
A simple implementation of Pythagoras' Theorem a2+b2=h2, and as in the question c is the hypotenuse, a2+b2=c2. (Side Note - in exams, the ...
Higher Bands: Marks for clear structure and use of good English so use paragraphs and well structured sentences with linking phrases.
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Solve: 2x - y = 4 and x + 2y = 7
There are two methods to solve this, you can either calculate one of the variables from either equations and then substitute to the second one or try to multiply o...
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