Solve For X
A. 20
B. 14.5
C.
[tex] 6\sqrt{3} [/tex]
D. 10

For this we will be using proportions. In this case, our proportion is [tex] \frac{25}{x} =\frac{x}{4} [/tex]
Firstly, cross multiply: [tex] 100=x^2 [/tex]
Next, square root each side, and your answer will be 10 = x, or D.