Factor
2х2-13х - 70
а) (2х-7х+10)
c) (2x+7}(x-10)
Oь) (7х+5х+2)
Od) 2(x+7)(х+10)
ь

ос А
dc

Empty box + box + empty box fill in the box is equal to 30 how

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17

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?