Answer:
A ray.
Step-by-step explanation:
One part stops and the other continues. If it were to be bisected ( Cut in half) the infinite side will continue going while the other side already has a certain length and will stop.
Answer:
D
Step-by-step explanation:
Let's find unit rate of each (number of miles traveled in 1 hour). For that we will divide the distance by time to get the unit rate.
Note: 
(A)
rate =
mph (miles per hour)
(B)
rate =
mph
(C)
rate =
mph
(D)
rate =
mph
<u>As we can see, the first 3 rates are same, 75 mph, and the last one is
mph. So clearly, the last rate is the slowest.</u>
D is the right answer.
For this case we have:
By properties of the radicals 
So:
.
Now, for power properties we have:

Thus, 
So:
in its radical form
Answer:
in its simplest form.
in its radical form