A street light is at the top of a 12.0 ft. tall pole. A man 6.5 ft tall walks away from the pole with a speed of 7.0 feet/sec along a straight path. How fast is the tip of his shadow moving when he is 47 feet from the pole? Your answer: ft/sec Hint: Draw a picture and use similar triangles.Find the linearization L(x) of the function f(x) = 21 - 3x + 5 atx = -1. Answer: I(@) =