Optimal Number of Pies: We also can get the same answer as the previous question by finding the first row in A25:A30 where the cumulative probability in I25:I30 is larger than . a. 0.5000 b. 0.5714 c. 0.7143 d. 0.7500 e. 0.9500 5. If Betty Jackson bakes the optimal number of pies, what is the probability that she makes at least $63 in a day?a. 0b. 0.15c. 0.30d. 0.65e. 0.75

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?