we can use
sound level formula

where
is the sound level for a noise
I is intensity given
I0 is reference intensity
we know that reference intensity as

we are given

now, we can plug these values
and we get

now, we can simplify it

................Answer
The rule of reflection is ry-axis (x , y) → (-x , y)
You add up all the sides, so for example, the first 1, 5+4+5+4=18
Answer:
22x-12
Step-by-step explanation:
Yes, they are. They cannot happen both. Every time that you roll a cube you can get only one number, then if you roll a 4 you cannot roll a 3 at the same tiem, and if you roll a 3 you cannot roll a 4 at the same time.
Mutually exclusive events cannot happen at the same time.