A collector's mode
scaled so that 1 inch on the
model equals 6 feet on the
actual car. If the model is 0.75
inches high, how many feet
high is the actual car? Enter
your answer as a decimal.

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Factor and solve to find roots x squared -x - 90 =0

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?