Express the required calculation in terms of it and then round to the nearest tenth.

How much fencing is required to enclose a circular garden whose radius is 20 meters?

There are of fencing required.

(Simplify your answer. Type an exact answer in terms of 7.)

There are approximately

of fencing required.

(Round to the nearest tenth as needed.)

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.