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:
t = 25.05761543°
Step-by-step explanation:
sin (x) = 36/85 = 0.423529412
sin (x) = 0.423529412
x = sin^-1(0.423529412)
x = 25.05761543°
Ok.
So an hour contains 60 minutes.
The fraction is therefore,

Hope this helps.
r3t40
I don't get it, what are you suppose to do?
375 / 15 = 25 ft per minute <== Rosa's tilling rate