What is the slope of the line passing through the points (-1, 3) and (4, -7)?
A. 2
B. 3...
Mathematics, 27.01.2021 20:50 tbaanga1
What is the slope of the line passing through the points (-1, 3) and (4, -7)?
A. 2
B. 3/4
C. -4/3
D. -2
Answers: 3
Mathematics, 21.06.2019 20:30
What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)
Answers: 2
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Find ββ14β a. 14 b. β14 c. start fraction 1 over 14 end fraction
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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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