Event A: Flipping heads on a coin
Event B: Rolling an odd number on a number cube
What...
Mathematics, 04.06.2021 18:10 torybobadilla
Event A: Flipping heads on a coin
Event B: Rolling an odd number on a number cube
What is P(A and B)?
(Help this doesnt make any sense to me)
Answers: 1
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21 a stick 7 inches long is broken into two pieces, so that one piece is twice as long as the other one. how long are the two pieces?
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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
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