Which of the following are true statements? Check all that apply.
A. f(x) = 2VF
has the same domain and range as
f(x)= F.
B. The graph of f(x) = 2V I will look like the graph of f(x)=
but will shrink it horizontally by a factor of 1/2.
C. The graph of f(x) = 2VF will look like the graph of f(x)=
but will shrink it vertically by a factor of 1/2.
D. The graph of f(x) = ? I will look like the graph of f(x)=
but will stretch it vertically by a factor of 2.

Which statement justifies why angle ebc measures 90?

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

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?