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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?

Solve for x. 5(2x - 1) = 6 x = 1/10 x = 11/10 x = 1/2

Gthe rational function the quotient of the quantity x minus 4 and the product of the quantity x and 2 times x minus 1 can be expressed as the sum of two partial fractions: the quotient of a and x and the quotient of b and the quantity 2 times x minus 1 . find the value of a - b.