The measure of U= 55 and VT= 82 find the length of the TU to the nearest tenth of a foot

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).

What is the measure of angle tvu shown in the diagram below

Which of the functions graphed below has a removable discontinuity?