Advanced Placement Calculus 2016 Graphical Numerical Algebraic Fifth Edition Student Edition + Mathxl 1-year License
5th Edition
ISBN: 9780133314533
Author: Prentice Hall
Publisher: Prentice Hall
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A police car is parked 50 feet due north of a stop sign on straight road.
A red car is travelling towards the stop sign from a point 160 feet due east on the road.
The police radar reads that the distance between the police car and the red car is decreasing at a rate of 90
feet per second.
How fast is the red car actually traveling along the road?
The actual speed (along the road) of the red car is
(Note: Think right triangle.)
(Enter your answer as a decimal number rounded to 2 places.)
feet per second
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