Answer:

Step-by-step explanation:
The general equation of a sphere is as follows:

In which the center is
, and r is the radius.
In this problem, we have that:

So

through the point (4,3,-1)
This leads us to find the radius.



So the equation of the sphere is:

Answer:
Step-by-step explanation:
3x+ 1/3 for x<= -1
6x-27 for x >4
Answer: 1/2
Step-by-step explanation:
50/100 --> divide top and bottom by 50 to get...
1/2
Answer:
160-128=32
Step-by-step explanation:
distribute what is in the parentheses