The barometric pressure y (in inches of mercury) at an altitude of x miles above sea level decreases at a rate proportional to the current pressure according to the model dy dx where y = 29.92 inches when x = 0. (Round your answers to two decimal places.) (a) Find the barometric pressure at 9264 feet. in = -0.2y (b) Find the barometric pressure at 20,320 feet. in Need Help? Read It

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