Mathematics, 12.02.2020 21:28 lilianjoyful
Two cards are chosen from a pack of cards without replacement. Calculate the probabilities: (a) Both are picture cards. (b) Both are from red suits. (c) One card is from a red suit and one card is from a black suit.
Answers: 1
Mathematics, 21.06.2019 23:00, fortnite83
Events a and b are independent. the probability of a occurring is 2/5. the probability of b occurring is 1/4. what is p(a and b)?
Answers: 2
Mathematics, 22.06.2019 00:00, nshadow2920
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?
Answers: 3
Two cards are chosen from a pack of cards without replacement. Calculate the probabilities: (a) Both...
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