Simplify 12 + 75 300 - 27 12 6 45 5 23 x 63 (25)² + 121 ½ (3 + 2)(3 + 8) Show that (3 + 5)(3 - 5) equals -22
Higher Y is directly proportional to the square of x. When x=10, y=600 a)Express y in terms of x b)Calculate the value of y when x=4 c)Calculate the value of x when y=54 ____________________________ Y is inversely proportional to the square root of x. When x=144, y=2 a)Express y in terms of x b)Calculate the value of y when x=100 c)Calculate the value of x when y=4
A box increases in weight from 700g when empty to 1.6kg when full. What is the percentage increase in weight? Express 3x10² as a percentage of 1.6x10³ A car depreciates by 9% per year. It originally cost £24000. How much will it cost in 3 years time? Round your answer to 3 significant figures
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