document.write( "Question 544505: wind speed varies in the first twenty meters above the ground. For a particular day, let f(x) = 9.8 ln x +4.9 compute the wind speed x meters above the ground. At what height is the wind speed 7 meters per second? Round results to the nearest hundredth.
\n" ); document.write( "I cannot figure out how to do this problem and could really use some help! thanks! \n" ); document.write( "

Algebra.Com's Answer #355119 by lwsshak3(11628) $\"\"$ $\"About$

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wind speed varies in the first twenty meters above the ground. For a particular day, let f(x) = 9.8 ln x +4.9 compute the wind speed x meters above the ground. At what height is the wind speed 7 meters per second? Round results to the nearest hundredth.
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\n" ); document.write( "f(x) = 9.8 ln x +4.9
\n" ); document.write( "7= 9.8 ln x +4.9
\n" ); document.write( "7-4.9= 9.8 ln x
\n" ); document.write( "7-4.9= 9.8 ln x
\n" ); document.write( "2.1/9.8=ln x
\n" ); document.write( ".2143=ln x
\n" ); document.write( "convert to exponential form of logs: base(e) raised to log of number(.2143)= number(x)
\n" ); document.write( "x=e^.2143≈1.24
\n" ); document.write( "ans:
\n" ); document.write( "At a wind speed of 7 meters per second, the wind is 1.24 meters above the ground \n" ); document.write( "

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