Acylinder has a radius of 12.2 inches and a height of 6.1 inches.
what is the volume of the cylinder to the nearest tenth in³?
use 3.14 to approximate pi.

a 74.4 in³
b 148.8 in³
c 2850.9 in³
d 4961.2 in³

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?