Mathematics, 07.12.2020 22:50 Iyana678
DESPERATE WILL GIVE BRAINLIST AND THANKS
Which ordered pairs in the form (x, y) are solutions to the equation
7x−5y=28?
Select each correct answer.
(more then one answer)
(−6, −14)
(7, 9)
(−1, −7)
(4, 10)
Answers: 2
Mathematics, 21.06.2019 18:00, jabraeshaw
Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?
Answers: 1
Mathematics, 22.06.2019 00:00, xXwolfieplayzXx
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
DESPERATE WILL GIVE BRAINLIST AND THANKS
Which ordered pairs in the form (x, y) are solutions to th...
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