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Numerical Response 6. The circle shown below, with centre O, has a radius of 30 m - ZOMN = LONM . The length of arc

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Numerical Response 6. The circle shown below, with centre O, has a radius of 30 m - ZOMN = LONM . The length of arc MN, to the nearest tenth of a metre, is 3 SHORT ANSWER: Show all of your work. 1. The tip of the blade of one windmill reaches its minimum height of 8 m above the ground at a time of 2 s. Its maximum height is 22 m above the ground. The tip of the blade rotates 12 times per minute. Write a sine and a cosine function to model the rotation of the tip of the blade. Provide support for your answer. A graph is not necessary. (8 marks - 1 mark for the value of the parameter and 1 mark for the support of the value; 2 marks for the equations)2. Graph the function f (x) =2cos 2x -|+1 below and identify the amplitude, the period, the phase shift, and the vertical displacement. (7 marks) X -71/2 3TU/2

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