Option B:
Solution:
Given sound level = 120 decibel
To find the intensity of a fire alarm:
where 
Step 1: First divide the decibel level by 10.
120 ÷ 10 = 12
Step 2: Use that value in the exponent of the ratio with base 10.
Step 3: Use that power of twelve to find the intensity in Watts per square meter.
Now, do the cross multiplication,
Option B is the correct answer.
Hence .
1) Find the radius of the circle. You can do that by inspection; no work required.
2) Use the "area of a circle" formula A = pi r^2 to calculate the area.
3) Round off your area calculation to the nearest hundredth.
Area of circle= 3.14r^2
r= 4
A= 50.27
8/30
= (8/2) / (30/2)
= 4/15
8/30 in its simplest form is 4/15~
Answer:
m = 
Step-by-step explanation:
=> (-11/6) + m = -2/9
Adding 11/6 to both sides
=> m = 
LCM = 18
=> m = 
=> m =
