Answer:

Step-by-step explanation:
The tunnel, the ground and the depth of the tunnel form a right angle triangle.
The length of the tunnel is the hypotenuse of the right triangle that has been formed.
Let the length of the tunnel be
.
Using the sine ratio, we obtain;

The length of the opposite side is 
We substitute the given values to obtain;


We cross multiply to obtain;


Therefore the correct answer is C.
Answer:
See Below
Step-by-step explanation:
1) Rational AND Integer
2) Irrational
3) Whole Number
4) Natural Number
Hope this helps!
Answer:
Step-by-step explanation:
when y=4
x=4-3=1
when y=8
x=8-3=5
when y=5
x=5-3=2
1 1/8 = 1.125
2 2/8 = 2.25
1.125 +2.25 = 3.375 yards total
n = 3.375 x 4.30
n = 14.5125 rounds to $14.51 total