20) 2 Cars is moving to an intersection at right angle. Car A approaching at the...

 

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20) 2 Cars is moving to an intersection at right angle. Car A approaching at the speed of 120 miles/hour. Car B is moving at the rate of 100 mi/hour At what rate is the distance D between the cars is changing when A is 3 mile from the intersection and B was 4 miles from the intersection? 20) 2 Cars is moving to an intersection at right angle. Car A approaching at the speed of 120 miles/hour. Car B is moving at the rate of 100 mi/hour At what rate is the distance D between the cars is changing when A is 3 mile from the intersection and B was 4 miles from the intersection?