The compressions and rarefraction that make up a sound wave traveling through the air are 1. differences in air pressure.
2. differences in pitch.
3. echoes.
4. an example of infrasound.

Draw the line of reflection that reflects △abc onto triangle δ a'b'c'

Two parallel lines are crossed by a transversal.what is value of x

Hurry and answer this! circle x with a radius of 6 units and circle y with a radius of 2 units are shown which steps would prove the circles similar? translate the circles so they share a common center point, and dilate circle y by a scale factor of 4. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 4. translate the circles so they share a common center point, and dilate circle y by a scale factor of 3. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 3