If the following system has a solution, what is the
x − coordinate of the solution?
4x + 8y =...
Mathematics, 21.05.2021 03:30 deanlmartin
If the following system has a solution, what is the
x − coordinate of the solution?
4x + 8y = 60
x + 8y = 30
a. 6
b. 10
c. 618
d. 730
e. the system has no solution
Answers: 3
Mathematics, 21.06.2019 18:30, hsjsjsjdjjd
Iam a rectangle. my perimeter is 60 feet. how much are do i cover?
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
Physics, 12.12.2019 21:31