a speaker uses electrical energy to play music and then in this example which type of energy has the electrical energy being transformed into A. heat b. light C. motion D. sound

D sound

Step-by-step explanation:

i belive is sound

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.