In the given diagram, the points A, B, and C lie on a circle whose center is O. BOC is a diameter of the circle.

The following set of premises is relevant to the investigation of the given geometric diagram:

I. The radii of a circle are of equal length.
II. Angles opposite to equal sides of a triangle are equal.
III. The sum of the angles of a triangle is 180°.

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.