Answer:

Step-by-step explanation:
The given relation is

where
is the portion of walkway in which the person walks
Rearranging the equation we get

The length of the portion of the walkway labeled
is
.
we are given
S=80
RS=2
we can use tangent formula


now, we can find QR

we will get
...........Answer
Answer:
See below
Step-by-step explanation:
<u>Sine function</u> would be easiest
in a right triangle sin = opposite leg / hypotenuse
sin 57 = 10.8 / x
then <u> x = 10.8 / sin 57 </u> then <u>x = 12.88 units</u>
Using the pythagras theorem :
Length of rope = sqrt (6^2 - 5^2) sqrt 11 = 3.32 feet to nearest hundredth.