Which of the following steps indicates the addition property of equality while solving the equation –1 – 6x = x – 15? A)

x = 14∕2

B)

–1 – 6x = x – 15

C)

–1 – 6x + 15 = x – 15 + 15

D)

23 – 6x – 24 = x – 15

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Deepak plotted these points on the number line. point a: –0.3 point b: – 3 4 point c: – 11 4 point d: –0.7 which point did he plot incorrectly?

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?