Answer:
2 pi
Step-by-step explanation:
The radius is 2
The area of a circle is
A = pi r^2
We have 1/2 of a circle so
1/2 A = 1/2 pi r^2
=1/2 pi ( 2)^2
=1/2 pi *4
= 2 pi
3/8 because there are 3 numbers you want to land on and 8 total numbers.
Because your question isn't specific or formatted exactly, I cannot guarantee that my answer is what you expect.
√2x - 1 + 2 = 5
√(2x + 1)² = 5²
2x + 1 = 25
2x = 24
/2 /2
x = 12
Therefore x = 12.
Proof:
√2x - 1 + 2 = 5
√2(12) - 1 + 2 = 5
√24 - 1 + 2 = 5
√25 = 5
5 = 5
