Posted by **Mallory** on Saturday, December 31, 2011 at 1:50pm.

Scientists use the Beaufort wind scale to approximate wind speed. The formula is B= 1.69 sqrt(s+4.45) -3.49 where B is the Beaufort number and s is the speed in miles per hour. To the nearest mile per hour, what is the approximate wind speed if the Beaufort number is 6?

- Math -
**bobpursley**, Saturday, December 31, 2011 at 3:24pm
You have to be kidding.

Put this into the google search window:

(1.69*sqrt(6+4.45)) -3.49=

- Math -
**Anonymous**, Saturday, December 31, 2011 at 4:29pm
B = 1.68*sqrt(s+4.45)-3.49 = 6.

1.69*sqrt(s+4.45) = 6+3.49 = 9.49,

Divide both sides by 1.69:

sqrt(s+4.45) = 5.62,

Square both sides:

s+4.45 = 31.53,

S = 27.1 mi/hr.

- Math -
**Henry**, Saturday, December 31, 2011 at 4:32pm
OOPs! Henry, not anomymous

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