Game Pitches Seen 1 25

2 20

3 20

4 17

5 15

6 14

The table lists the number of pitches seen by a player in 6 games. What is the mean of the data set?

A.

11

B.

14.5

C.

18.5

D.

20

What is the result of adding the system of equations? 2x+y=4 3x-y=6

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?

What multiplys to be 1 but adds up to be 4