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140 / 12 = 11.666^.
11.66^. * 21 = 245
The key to answering this question is for the student to realise that even though the area to be computed is a difficlut shape (an arc), the clock consists of 5 more arcs of the same shape. Once the stude...
To work out the values you need to sub in a and b into the equation, giving you: 2(5)2 + (-3)3 From this we use the rules of BODMAS to first complete the orders and obtain: 2*25 + (-...
Firstly work out how many days Chen bought a sandwich, which was one fifth of 45 days. So 45/5 = 9. We then multiply 9 by the cost of a sandwich, 92.75 = 24.75. The remaining days Chen must have bough...
To begin we need to simplify the expression. First we multiply out (4x–5)^2 to get 16x2+40x+25 and then we multiply out 5x(3x – 8) to get 15x2-40x. This makes the whole expression 16...
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