Answer:

Step-by-step explanation:
In order to find r we have to square both sides of the equation

The *square root* sign cancels out the *squared* sign therefore:

Answer:
<h2><em>55.112</em></h2>
Step-by-step explanation:
This is correct all you do is add them up like this:
30.27
1.9
+22.952
________
55.112
Answer:
Step-by-step explanation:
I don't think that anybody in Elementary School would Understand this you might want to post this question in the High School section.
Hope it gets answered :)