To find out how far away the band director is from the drum major, we can use the formula:
\[ \text{Distance} = \text{Speed} \times \text{Time} \]
Given:
- Speed of sound = 330 m/s
- Time = 0.40 s
Now, substituting the values into the formula:
\[ \text{Distance} = 330 , \text{m/s} \times 0.40 , \text{s} = 132 , \text{m} \]
So, the band director is 132 meters away from the drum major. The correct answer is 132 m.