The number of participants increased by a factor of 200 from 2010 to 2013.
Answer:
I'm not 100% sure but I'm pretty sure you are correct
Ok, so the 4pi is indicating toward the arc length. Since the radius of the circle is 18, the circumference of the circle is 36pi. If you find the ratio of the arc length to the circumference, you can find the ratio of the indicated angle to the total number of degrees in a circle.
4pi/36pi = 1/9
(indicated angle)/360 = 1/9
(indicated angle = 40
The answer is the 4th choice, or 40 degrees.
The answer is equal to 2x7 / 5x9 = 14/45
A=3/7 b=4....................
