12. A sine function has an amplitude of 5, a period of 4, and range {ye R12 y 12}. Identify the correct equation of this function. A. y 5sin 20+7 C. y=5sin 0.50+7 B. y=5sin 20-7 D. y=5sin 0.50-7 13. The arc length along a circle of radius 5 cm that corresponds to a rotational angle ofis 4 5 4 5 45% A. - B. C. D. 5 4 4 14. Simplify cos cossinsi 117 11 A. cos B. sin- C. cos 30 30 8|7 27 D. sin- 30 118 30