Answer:
X-y=3. 2x-2y=6. 2y=-2
Y= -1
2x-4y=8. 2x-4y=8 2.x-4.-1=8
2x=4. x=2
Step-by-step explanation:
If one sound is 10^x times more intense than another sound, then it has a sound level which is 10*x more decibels than the less intense sound. So, 10*6=60=7.75^2≈60
Answer:
390 degrees
Step-by-step explanation:
30 + 360 = 390
