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ChrisV
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An air traffic controller spots two planes at the same altitude converging on a point as they fly at right angles to each other. One plane is 225 miles from the point moving at 450 miles per hour. The other plane is 300 miles from the point moving at 600 miles per hour.
 2 years ago
 2 years ago
ChrisV Group Title
An air traffic controller spots two planes at the same altitude converging on a point as they fly at right angles to each other. One plane is 225 miles from the point moving at 450 miles per hour. The other plane is 300 miles from the point moving at 600 miles per hour.
 2 years ago
 2 years ago

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ChrisV Group TitleBest ResponseYou've already chosen the best response.0
(a) At what rate is the distance between the planes decreasing?
 2 years ago

ChrisV Group TitleBest ResponseYou've already chosen the best response.0
(b) How much time does the air traffic controller have to get one of the planes on a different flight path?
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
Use a^2 + b^2 = d^2 and take the derivative with respect to time. Then find dd/dt
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
Did you figure it out yet?
 2 years ago

Chlorophyll Group TitleBest ResponseYou've already chosen the best response.1
d = sqrt ( 225^2 + 300^2) = 375 mi
 2 years ago

Chlorophyll Group TitleBest ResponseYou've already chosen the best response.1
Could you take derivative of a^2 + b^2 = d^2 ?
 2 years ago
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