The spray from a sprinkler reaches 21 feet from the sprinkler and creates a circle as it spins. what is the circumference of the circle sprayed by the sprinkler? use
22/7 for π.

a.21 ft
b. 66 ft
c. 120 ft
d. 132 ft

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.

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)

What fraction is equivalent to 0.46464646··· a. 46⁄99 b. 46⁄999 c. 46⁄100 d. 23⁄50