Solve the Problem $182 \mathrm {~km} / \mathrm { hr }$

question 257

Multiple Choice

Solve the problem. Round your answer, if appropriate.
-One airplane is approaching an airport from the north at $182 \mathrm {~km} / \mathrm { hr }$ . A second airplane approaches from the east at $294 \mathrm {~km} / \mathrm { hr }$ . Find the rate at which the distance between the planes changes when the southbound plane is 31 $\mathrm { km }$ away from the airport and the westbound plane is $25 \mathrm {~km}$ from the airport.

• A) \(- 326 \mathrm {~km} / \mathrm { hr }\)
• B) \(- 652 \mathrm {~km} / \mathrm { hr }\)
• C) \(- 489 \mathrm {~km} / \mathrm { hr }\)
• D) \(- 163 \mathrm {~km} / \mathrm { hr }\)

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