What is the value of x?

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x=

The frequency table shows a set of data collected by a doctor for adult patients who were diagnosed with a strain of influenza. patients with influenza age range number of sick patients 25 to 29 30 to 34 35 to 39 40 to 45 which dot plot could represent the same data as the frequency table? patients with flu

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

Determine if the equation defines y as a function of x: 2xy = 1. yes o no