The voltage in an electrical circuit is multiplied by itself each time it is reduced. the voltage is 27/125 of a volt and it has been reduced three times. write the voltage in exponential form. what was the original voltage in the circuit?

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)