Problem 5. (1 point) A man starts walking north at 4 ft/s from a point P. Five minutes later, a woman starts walking south at 5ft/s from a point 500 ft due east of P. At what rate are the people moving apart 15 min after the woman starts walking? ft/s Answer(s) submitted: (incorrect) Problem 6. (1 point) A street light is at the top of a 15 foot tall pole. A 6 foot tall woman walks away from the pole with a speed of 8 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 45 feet from the base of the pole? The tip of the shadow is moving at ______ ft/sec. Answer(s) submitted: (incorrect) Problem 7. (1 point) Find the linearization $L(x)$ of the function at $a$. $f(x) = \ln x$, $a = 1$ $L(x) = $ Answer(s) submitted:
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Since he is walking at a rate of 4 ft/s, in 15 minutes (or 15/60 = 1/4 hours), he would have traveled 4 * (1/4) = 1 ft. Show more…
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