Which of the following is the equation of a circle with a radius of 5 cm and center at (3, 6)?

(x 3)2 + (y + 6)2 = 10

(x 3)2 + (y + 6)2 = 25

(x + 3)2 + (y 6)2 = 25

(x + 3)2 + (y 6)2 = 10

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function. a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.