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Notice that 36 is a square number equivalent to 62 . Can also tell this as the expression contains no coefficients of h so they must cancel each other out. Using this information we can deduce ...
Steps: (1) Multiply out the brackets on the left handside [11a + 5c = 6d + 2dc]. (2) Put all terms containing c on one side and all other terms on the other side of the equation [ 5c - 2dc = 6d - 11a]. (3...
Firstly draw the circle and label the diameter. Then calculate the radius by dividing the diameter by 2 (radius is 10mm). Using the formula A=pi*r^2 to find the area. This gives the answer as 100pi mm^2 o...
This is a question about completing the square. The first step involves taking the factor of 3 our of the expression to reach the correct form for completing the square to reach 3(x^2-(8/3)x)+1. Then, con...
Total mark for whole class is 3060= 1800Total mark for girls is 2054= 1080Therefore subtract smaller from larger to get total mark for boys, and divide that number by 10 to yield 72.
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