Horizontal Distance Assignment | Assignment Help Services
September 26th, 2019
A plane flying at an altitude of 4.0 mi is at a direct distance D= √(16.0+x^2) from an airport control tower, where x is the horizontal distance to the tower. If the plane’s speed is 330 mi/h , how fast id D changing when x=6.4mi?
D is changing at a rate of ___ mi/h.
(Do not round until the final answer. Then round to the nearest ten as needed.)