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the answer of how many degrees per hour the temp. is decreasing by. Thank you!

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Homework: Section 12.4 Homework
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HW Score: 75%, 12.75 of 17 pts
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Suppose a person is going up in a hot air balloon. The surrounding air temperature in degrees Fahrenheit decreases with height according to the formula
T(h) = 72 e - 0.000065h
where h is the height in feet. How fast is the temperature decreasing when the person is at a height of 950 ft and rising at a speed of 769 ft/hr?
The temperature is decreasing at
degrees
hour
(Round to the nearest tenth as needed.)

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