(6.8 x 10^2) x (1.3 x 10^-3) give your answer in standard form

Step-by-step explanation:

Given : Expression

To find : Solve the expression in standard form?

Solution :  

Expression

Expand the decimal and power,

Therefore,

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

d

step-by-step explanation:

i used the pitagoras theoreme