Question

A plane flies from Dubbo on a bearing of 139° for 852 km, then turns and flies on a bearing of 285° until it is due west of Dubbo. How far from Dubbo is the plane, to the nearest km?

Answer 1

The distance of the plane from Dubbo is approximately 778 km.

Step-by-step explanation:

To find the distance from Dubbo to the plane, we need to calculate the distance the plane traveled along its flight path. The plane first flies on a bearing of 139° for 852 km, and then turns and flies on a bearing of 285° until it is due west of Dubbo. We can break down the plane's displacement into its north-south and east-west components.

Using vector addition, we can find the north-south and east-west distances.

North-south component: Distance = 852 km × sin(139° - 180°) = -454.19 km (negative because it's going south)

East-west component: Distance = 852 km × cos(139° - 180°) = -625.88 km (negative because it's going west)

To find the distance from Dubbo, we use the Pythagorean theorem: Distance = √((-454.19 km)^2 + (-625.88 km)^2) = 778 km (rounded to the nearest km).

Answer 2

Step-by-step explanation:

So first you add them together which gives you infinity and then you divide infinity by (139+285) then keep doing it until you realise this is a scam