A pile of cards has 3 black cards and 5 red cards. Alex picks 6 cards out of the pile, without replacement. Which of the following are possible outcomes? 1)Alex picks all red cards
2)Alex picks all black cards
3)Alex picks more black cards than red cards
4)Alex picks more red cards than black cards
5)Alex picks an equal number of red and black cards.
Select all that apply.​

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?