Answer: 137π
The usual formula for a circle centered at (a,b), with radius r,
(x - a)² + (y - b)² = r²
The area of the circle is πr², so 137π
It’s 25. Hope this helps ✌️
<h3>The exact probability that the blue ball is drawn first and the red ball is drawn second is

</h3>
<em><u>Solution:</u></em>
<em><u>The probability of an event is given as:</u></em>

Given that,
There are 12 balls in a bag
One is blue and one is red
Favorable outcome = blue ball is drawn first
Favorable outcome = 1
Therefore,

Now, without replacement, red ball is drawn second
Therefore,
Total possible outcomes = 12 - 1 = 11

<em><u>What is the exact probability that the blue ball is drawn first and the red ball is drawn second?</u></em>

Thus the exact probability that the blue ball is drawn first and the red ball is drawn second is 
Answer: 1.
<----(answer for 7 x 10 - 8)
2.
<---- (answer for 2 x 10-8)
Step-by-step explanation:




W=5((19/4)+(3/4))
=5(22/4)
=5(11/2)
=55/2