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Newton High is located at the intersection of a north-south road and an east-west road. The calculus students are looking out the class window in disbelief at two students, Shant and Narek, who are rounding the corner on pogo sticks! The students see Shant traveling toward the school from the east. Narek is traveling north away from the school. Shant is traveling at ft/min at the moment he is ft from the school. At the same time, Narek is ft from the school moving at ft/min. Determine whether the distance between the two students is increasing or decreasing, and at what rate. .

Use the eTool below to help solve the problem.
Click the link at right for the full version of the eTool: Calc 7-181 HW eTool