The answer is B hope this helps
the radius: r^2 = 81
r =9
c = 2*pi*r
= 2 * pi * 9
= 18 *pi
Answer: 18*pi or approximately 56.62
Answer:
The third one
Step-by-step explanation:
You would first mark -2 on a graph then the circle would be open because the sign is just greater than, then the arrow would be pointing to the right, because that is the way your equation shows it
Answer:

A = 1500
3 years = $18,644.48
30 years = $132,032.78
Step-by-step explanation:
Evidence are simply facts to support a claim, while counterexamples are instances to show the contradictions in a claim
<em>The question is incomplete, as the required drop-down menus are missing. So, I will give a general explanation</em>
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To show that a statement is true, you need evidence.
Take for instance:

The evidence that the above proof is true is by taking the <em>squares of both sides of </em>


However, a counterexample does not need a proof per se.
What a counterexample needs is just an instance or example, to show that:

An instance to prove that:
is false is:

Hence, the complete statement could be:
<em>In a direct proof, evidence is used to support a proof
. On the other hand, a counterexample is a single example that shows that a proof is false.</em>
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Read more about evidence and counterexample at:
brainly.com/question/88496