Question

. The function s(l) = 1.34 √l models the maximum speed s in knots for a sailboat with length l in feet at the waterline. a. Use the model to find the length of a sailboat with a maximum speed of 12 knots. Round to the nearest foot.

Answer 1

Answer:

The length of the sailboat is 80 feet.

Step-by-step explanation:

The function  

$s(l) = 1.34 \sqrt{l}$ ................ (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

$12 = 1.34 \sqrt{l}$

⇒ $\sqrt{l} = 8.955$

⇒ $l = (8.955)^{2} = 80$ feet (Answer)

{The value is round to the nearest foot}