Whích rays are part of line BE?
AC and
and
As and he
AB and

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

Which of the following are accepted without proof in a logical system? check all that apply.

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?