3. the population of columbus, ohio, in 2014 was about 823,000. the population of the united states was about 319 million in 2014. (a) write each population in scientific notation. (b) about how many times larger was the population of the united states than the population of columbus, ohio? show your work.

What term makes it inconsistent y=2x - 4

Use the given information to determine the exact trigonometric value.

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?