Answer:
The length of the sailboat is 80 feet.
Step-by-step explanation:
The function
[tex]s(l) = 1.34 \sqrt{l}[/tex] ................ (1)
models the maximum speed s in knots for a sailboat with length l in feet at the waterline.
So, using this model we have to find the length of a sailboat with a maximum speed of 12 knots.
Now, from equation (1) we get
[tex]12 = 1.34 \sqrt{l}[/tex]
⇒ [tex]\sqrt{l} = 8.955[/tex]
⇒ [tex]l = (8.955)^{2} = 80[/tex] feet (Answer)
{The value is round to the nearest foot}
