Answer:
x=3
Explanation:
The product of the lengths of the segments of one chord equals the product of the segments of the other.
9*5 = x*5x
45 = 5x^2
Divide each side by 5
45/5 = 5x^2/5
9 = x^2
Take the square root of each side
sqrt(9) = sqrt(x^2)
3 =x