The distance from earth to the moon is 384,400 kilometers. what is this distance expressed in scientific notation? a. 3.844e5 kilometers b. 3.844 × 105 kilometers c. 3.844e-5 kilometers d. 3.844e-6 kilometers e. 3.844 × 106 kilometers f. 3.844e6 kilometers g. 3.844 × 10-6 kilometers h. 3.844 × 10-5 kilometers this is multiple choice

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).

Factor. 8x2y2 – 4x2y – 12xy 4(8x2y2 – x – 12xy) 4(2xy – 4x2y – 12xy) 4x2y2(2xy – xy –3) 4xy(2xy – x – 3)

Which system of linear inequalities is represented by the graph? + l tv x-3y > 6 and y > 2x o x + 3y > 6 and y o x-3y > 6 and y> 2x o x + 3y > 6 and y > 2x + 4 la +