Yo I need help fast-

Hannah and Vicky

Step-by-step explanation:

1/2 is the same as 2/4, 4/8, and 6/12

Gianna's distance was 5/12, which is less than 6/12 or 1/2

Hannah's distance was 5/8, which is greater than 4/8 or 1/2

Larisa's distance was 3/8, which is less than 4/8 or 1/2

Vicky's distance was 2/4, which is equal to 2/4 or 1/2

vikky aand hannah

Step-by-step explanation:

2/4=1/2

5/8 is more than 4/8 wichi s one half

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

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.