You and your friends are watching a television show. One of your friends asks, “How long are the commercial breaks during this show?” a. Is this a statistical question? Explain.

yes; There will be variability in the lengths of the commercial breaks.

yes; The commercials can be timed to get their lengths.

no; A commercial will always run the same length of time.

no; Commercial breaks vary in length.
Question 2
b. Use the mean of the values in the table to answer the question.

Commercial breaks average
a
minute

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x

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?