Which equation can be rewritten as x + 4 = x2? Assume x>0. O x + 2 = X
O Vx+ 2 = X
O Vx+4 = x
o VX2 + 16 =

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points

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?