Analyze the diagram below and answer the question that follows. Which of the following is equal to m(angle)c?

A. cos (a/c)
B. sin (a/c)
C. tan -1(c/a)
D. cos-1 (c/a)

15 points ! ~ see if you know the answer to both you!

If f(x) = 4x – 3 and g(x) = 8x + 2, find each function value a.f[g(3)] b.g[f(5)] c.g{f[g(-4)]}

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.