12) {Chapter 5.8] Find a possible sinusoidal equation of the curve given below. Answers may vary. Amplitude = Vertical Shift = Horizontal Shift = 1) (Chapter 5.1) Without a calculator convert 712' to decimals, then convert it to radians. [6 points] [ Your final answer must be exact, no rounding.] 2) (Chapter 5.1) Find the smaller arc length formed by the intersection of the unit circle and the line y = =. 3) (Chapter 5.1) A satellite in a circular orbit 1250 kilometers above the Earth makes one complete revolution every 110 minutes. Assuming that the Earth has a radius of 6378 kilometers, what is the linear speed in miles per hour? [Note: 1.6 kilometers = 1 mile]