SOLUTION: Hello again thank you for the help. Here is my question: According to Froude's Law, the speed at which an aquatic animal can swim is proportional to the square root of its lengh

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Question 403353: Hello again thank you for the help. Here is my question:
According to Froude's Law, the speed at which an aquatic animal can swim is proportional to the square root of its lenght.
a. if a 75-foot blue whale can swim at a maximum speed of 20 knots, write a function that relates its speed(s) as a function of its lenght (1)
b. How fast would a similar 60-ft long blue whale be able to swim?

Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
a. s+=+k%2Asqrt%28l%29 ==> 20+=+k%2Asqrt%2875%29 ==> k+=+4%2Fsqrt%283%29.
==> s+=+4sqrt%28l%2F3%29.
b. s+=+4sqrt%2860%2F3%29+=+4%2Asqrt%2820%29+=+8sqrt%285%29+=+17.89knots, to 2 decimal places.