In the diagram, the circle will be dilated by a scale factor of 3 about the origin. the points c, a, and b map to c, a, and b'after the dilation.
what is the length of c'b' ? use the distance formula to you decide:

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 value of x? enter your answer in the box. x = two intersecting tangents that form an angle of x degrees and an angle of 134 degrees.

What is the y intercept of f(x)=(1/2)^x?