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Audio system produces intensity of 100 dB & another audio system produces intensity of 103dB. Calculate intensity ratio of two audio systems? Given tan x=-3/4 where x the II-nd quadrant. Find sin (2x)? Team slug or team worm?!? Please help with steps to find the area of the region bounded by the curves - local band is point of origin. Thanks!? If i found 35 quarters and dimes worth $6.50 how many of each do I have?