Ardi and Lei are both travelling by the train. Ardi's train travels 70 km in 35mins. Lei's train travels 585 km. It leaves at 9:05 and arrives at 13:35.Work out the difference in km/h between the average speed of their trains

answer: just subtact the units and then add the non negative : happy to

step-by-step explanation:

m∠a is 90°

m∠b is 40°

38.6°

step-by-step explanation:

resultant is 10 pound

smaller force = 8 pound

angle formed = tan⁻¹(

                        =tan⁻¹(

                          =tan⁻¹(0.8)

                        =38.6°