Mathematics, 05.05.2020 17:38 lzrd3rik
Edward is part of a bird watching club and keeps track of the robins in a local park. To do so, he puts tags on 20 robins and releases them. Later, he catches 120 robins; 12 robins were tagged. What is the best estimate for the robin's population?a)72robinsb)128robinsc)1 52robinsd)200robins
Answers: 1
Mathematics, 21.06.2019 18:00
He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .
Answers: 1
Mathematics, 21.06.2019 20:00
What are the domain and range of the function f(x)=2^x+1
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Mathematics, 22.06.2019 00:00
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
Mathematics, 22.06.2019 03:00
Asingle die is rolled twice. find the probability of rolling a 3 the first time and a 2 the second time
Answers: 1
Edward is part of a bird watching club and keeps track of the robins in a local park. To do so, he p...
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Mathematics, 07.11.2019 23:31
Social Studies, 07.11.2019 23:31