Wind Speed Varies in the First Twenty Meters Above the Ground

question 144

Multiple Choice

Wind speed varies in the first twenty meters above the ground. For a particular day, let f(x) =1.2 ln x+8.5 model the wind speed x meters above the ground. What is the wind speed 8 meters above the ground? Round results to the nearest hundredth.

• A) 11.07 meters per second
• B) 10.58 meters per second
• C) 11.00 meters per second
• D) -6.00 meters per second

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