HEL ANSWER IN 2mins AND I WILL GIVE YOU MASTER THING Which of the following number sentences is an example of the identity property? Select all that apply. x 1
8.7 + 0 = 8.7
1.5 x 4 = 6
+ 11
1 + 1

Which statements regarding efg are true? check all that apply.

Which expression is the factorization of x^2+10+21

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?