The faster you buzz your lips when playing a brass
instrument, the the sound.
A lower
B longer
slower
D higher

D higher

Step-by-step explanation:

The pitch of a brass instrument depends on the volume of air that is vibrating, as well as the speed at which the player's lips are vibrating.

By buzzing the lips faster or slower, the player can cause the air in the tube to resonate at different harmonics.

Hope this helps! :)

answer: 4

step-by-step explanation:

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.