Find C. Round to the nearest tenth.
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20 ft
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B
A
18 ft
C = [?]
Law of Cosines: c2 = a + b2 - 2ab cos C
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In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq

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.

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?