What is the surface area of a sphere that has a radius of 5 units use 3.14 for π
254 units ^2
300 units ^2
314 units ^2
384 units ^2

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

the answer is 45 i just did it on oddesy ware

the answer is a i belaeve atleast thats what my calculator just gfave me

step-by-step explanation: