Will grade brainliest you need to repaint the floor and inside wall of your circular swimming pool. it has a diameter of 16 feet and a depth of 5 feet. what is the surface area that needs to be repainted? (use 3.14 for π .) 1,055.04 ft 2 251.2 ft 2 401.92 ft 2 452.16 ft 2

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?