A six-sided die is rolled 2 times. What is the fractional probability of rolling a 6 the first time and an even number the second time?

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).

With #! i’ve tried to figure it out but i can’t.

Which matrix multiplication is possible?