Answer:
i think IV
Step-by-step explanation:
because of the picture
Answer:
Step-by-step explanation:
We want to find
This can be rewritten as;
Recall that; 
We evaluate now to obtain;
Do you mean an extraneous solution? I will tell you what I think. To tell if a solution is extraneous you need to go back to the original problem and check if there actually is a solution or if the solution is actually right. If not then it is extraneous.
C=Pi X D
Diameter is twice the radius so that would be 24 feet
C = Pi X 24
C = (22/7) X 24
C = 75.428 Feet.
All of them are, except ' π ' (pi) ... which gives you an idea of why
that one is usually written as a symbol and not as digits.
Here's a useful factoid regarding the other numbers on the list:
-- <em>ANY</em> number that you can write down on paper, <u>completely</u>,
using digits, is a rational number.
