If you change to feet then you have 6 feet divide that by 5 and you have each piece is 1.2 feet long.
Depending on how it is written, it could be either of these following solutions:
f(x) = x/2 - 6 or f(x) = x/(2-6)
For the first, we solve for x by replacing f(x) with 0
x/2 - 6 = 0
x/2 = 6
x = 3
For the second, do the same
x/(2-6) = 0
x/-4 = 0
x = 0
Answer:
center (-3,6)
radius(r) 10
Step-by-step explanation:
The center-radius form (it is really called standard form) of a circle is:

where
is the center and
is the radius.
Compare the following:


You should see the following:


.
.
.
.
So the center is (-3,6) and the radius is 10.
Part A: 5.25
Average speed is 5.25 mi per hr
Part B: 8 hrs because
42 divided by 5.25 is 8