What is the sound level for a noise that has an intensity of  9.9 × 10-5 watts/m2?
`(β= 10 log(l/((i0 = 10-12 watts/m2)

a.
8.00 db
b.
9.90 db
c.
80.00 db
d.
99.00 db

answer: a.   one is a factor of every whole number since every number is divisible by itself.

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!