The answer is the last one !
Answer:
31.4in
Step-by-step explanation:
The formula is [ C = 2πr ].
C = 2π(5)
C = 10π
C = 10(3.14)
C = 31.4in
Best of Luck!
<h3><u>Given</u><u> </u><u>points</u><u>:</u><u>-</u></h3>
We know that
The only two usable numbers that make up 63 are 9 and 7 and 21 and 3 in some form. So that's how you start the question.
(x 9)(x 7) is what you can get. The 2x is very small, so it suggests that 21 and 3 are not the right factors.
You have a plus 2 as the middle term. That is exactly the difference between 9 and 7. That tells you the sign on 9 because it is larger than 7.
(x + 9) ( x 7) is what you have so far. Since 63 is minus, the 7 must be minus. Now what you have is
(x + 9)(x - 7) and that is the final answer.