The area of a circle is A = r^2pi
Since the area is equal to 121pi the equation would be, 121pi = r^2. To find r in terms of pi take the square root of 121, to find the radius. Then multiply that by two to get the diameter.
The question says they will run less than 36 miles, so this means they will run up to 35 miles.
They have run 22 so far, so t will be less than or equal to 35 - 22
T is less than or equal to 13.
Hello here is a solution :
<span>f(x) = x3 − 121x = x(x²-121) = x (x² -11²)
</span>f(x) = x (x+11)(x-11)
Every added angle to a polygon adds another 180 degrees to the sum of the angles. The starting point is 180 degrees for a triangle (n=3). So the general formula is 180*(n-2). Fill in n=3 to test if 180 comes out, it does!!
