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Mathematics, 14.04.2021 01:40 lalkjlkeu9709
Where does the graph of f(x) = (x + 9)(x - 4) cross the x-axis?
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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.
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Where does the graph of f(x) = (x + 9)(x - 4) cross the x-axis?...
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