A Ferris wheel at the local fair has a diameter of 30 feet and a midline of 18 feet. This Ferris wheel makes one revolution every 60 seconds. If Amanda and Steve are riding on this Ferris wheel, which equation could be used to model d, the distance Amanda and Steve are from the ground as they ride the Ferris wheel as a function of time, t? O A. nt O B. 30t d (t) = 18 + 15 sin d (t) = = 15 + 18 sin 30 C. 30t D. d (t) = = 18 + 15 sin d (t) = Tt = 15 + 18 sin 30

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Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.