Simplify square root of five times the quantity eight plus three square root of six

15.6855577203

Step-by-step explanation:

1. The square root of 5 is 2.2360679775 because you divide 5 by 2.

2. The you add 8+3=11.

3. Now you add 2.2360679775 and 11 which is 13.2360679775.

4. The square root of 6 is 2.44948974278

5. Now add 2.44948974278 and 13.2360679775 which is 15.6855577203

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