A national truck rental services have a surplus of one truck in each of the cities, 1, 2, 3, 4, 5, and 6 and a deficit of one truck in each of the cities 7,8,9,10,11 and 12. The distance (in kilometers) between the cities with a surplus and cities with deficit are displayed below: How should the trucks be displayed so as to minimize the total distance travelled? (10 marks) 1 2 3 4 5 6 41 72 39 52 25 51 22 29 49 65 81 50 27 39 60 51 32 32 45 50 48 52 37 43 29 40 39 26 30 33 82 40 40 60 51 30

Δabc is reflected across line l to form δ alblcl, and a¯¯¯al¯¯¯¯ intersects line l at point d. which equation is not necessarily true?

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?

What multiplys to be 1 but adds up to be 4