3. A police cruiser, approaching a right- angled intersection from the north, is chasing a speeding car that has turned the corner and is now moving straight east. When the cruiser is 0.6 miles north of the intersection and the car is 0.8 miles to the east, the police determine with radar that the distance between them and the car is increasing at 20 miles per hour. If the cruiser is moving at 60 mph at the instant of measurement, what is the speed of the car? Givens (rates and information) Diagram: Unknown rate Formula

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