There are two expressions that can work for this: 0.8x and x-0.2x Hope this helps :)
Answer:
An echo is formed as a result of reflection of the original sound which returns to the listener. You might have experienced Echo in an EMPTY ROOM but no echo is produced after the room is occupied. To avoid echo from being produced the echo has to be absorbed. Echo in a cinema theatre is absorbed by the WALLS of the theatre.
They are not plain. The walls are corrugated or shaped to form tiny holes or empty spaces to ABSORB the ECHO. Modern Theatre's have ABSORBENT materials sticked to the walls of the theatre.
Answer:
369
Step-by-step explanation:
the equation of the line is
y = -3x + 6
slope is m = -3
as we know that for parallel lines, the slope is always equal.
so the slope of the new line is also m = -3
it is also passing through (-4,9)
so the equation of the line i s
m= -3
so the answer is y = -3x - 3
