<span>5.497211734394065. radius confirmed!</span>
Combine the fractions by finding a common denominator.
10r+9/r(r+3)
The fractions 25/100 and 50/200 are both equivalent to 1/4.
First multiply all terms by z
8-z^2=4z
Then order into standard form
-z^2-4z+8=0
Multiply the equation by -1
z^2+4z-8=0
Plug into quadratic equation
-4±√16-4(-8)
-4±√48
(-4±4√3)/2
-2±2√3
Final answer: z=-2± 2√3
Y=x+25 has the biggest increase so i think its B
