Go For questions 6a-6d, choose Yes or No to tell whether 3 is the GCF of the pair of numbers. 6a 9, 15 6b 12, 18 6c 15, 27 6d 30, 45

An angle that measures between 90 and 180° is called a(,

Write 17/20 as a decimal and as a percent.

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?