What is the length of the hypotenuse of the triangle

i think the answers D.

Step-by-step explanation:

The correct option is 4.

Step-by-step explanation:

According to the Pythagoras theorem, the sum of squares of two legs of a triangle is equal to the square of the hypotenuse of the triangle.

From the given figure it is clear that the length of one leg is 4 ft and the length of second leg is 7 ft.

Using Pythagoras theorem, we get

Taking square root both the sides.

The length of the hypotenuse is √(65) ft . Therefore the correct option is 4.

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

both equations and proportions are better.