Ll.165. A plane flying at an altitude of 3.0 km is at a direct distance D= = √9.0+x² from an airport control tower, where x is thehorizontal distance to the tower. If the plane's speed is 400 km/h, how fast is D changing when x = 6.5 km?D is changing at a rate ofkm/h.(Do not round until the final answer. Then round to the nearest ten as needed.)

A plane flying at an altitude of 3.0 km is at the distance D=9+x2 where x is the horizontal distance…

Answered: A plane flying at an altitude of 3.0 km…

Elementary Algebra

17th Edition

ISBN:9780998625713

Author:Lynn Marecek, MaryAnne Anthony-Smith

Publisher:Lynn Marecek, MaryAnne Anthony-Smith

Chapter10: Quadratic Equations

Section10.4: Solve Applications Modeled By Quadratic Equations

Problem 10.83TI: An arrow is shot from the ground into the air at an initial speed of 108 ft/sec. Use the formula...

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A plane flying at an altitude of 3.0 km is at a direct distance D = √9.0+ x² from an airport control tower, where x is the horizontal distance to the tower. If the plane's speed is 400 km/h, how fast is D changing when x = 6.5 km?