The decibel level of sound in a quiet office is 10−6watts/m2. (a) What is the corresponding sound intensity in decibels?

(b) How much more intense is this sound than the least audible sound a human can hear?​

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb