Answer:

Step-by-step explanation:
Given


Required
Determine the depth
The depth is the distance between the two distances as follows'

Substitute values

Convert fraction to decimal



Inverse variation is of the form y=k/x or if you prefer yx=k.
z=6.3 bar I assume you mean 6.33333333 forever
10z-z=63.3333...-6.3333
9z=57
z=57/9 (exact)
Now back to the problem...
xz=k, we are told x=3 and we have shown z=57/9 so we can solve for k, the constant of variation
k=3(57/9)=19
So our equation is:
xz=19, now we wish to know what z is when x=8 so
8z=19 divide both sides by 8
z=19/8
z=2.375 (exact, no rounding necessary)
Answer:
A. [–1, 1]
Step-by-step explanation:
The range is the values that the output can take
The values that sin can take go from -1 to 1 inclusive
Answer:
0.25
Step-by-step explanation:
Answer:
the answer would be 15/100= .15 *60= 9 so the tip would be 9$