Me im begging you it is easy consider the two groups listed below. which statement describes the sets? (2 points) house complete mailing address the relation (house, complete mailing address) is a function, but the relation (complete mailing address, house) is not. the relation (complete mailing address, house) is a function, but the relation (house, complete mailing address) is not. both (house, complete mailing address) and (complete mailing address, house) are functions. neither the relation (house, complete mailing address) nor the relation (complete mailing address, house) is a function.

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?