Respuesta :

prestonshelton
Hello!

CD^2 = CB * CA

Put in the values we know

25^2 = 14(14 + x)

Distribute the 14

25^2 = 14^2 + 14x

Subtract both sides by 14^2

25^2 - 14^2 = 14x

Square the numbers

625 - 196 = 14x

429 = 14x

Divide both sides by 14

x = 30.6

The answer is D)30.6

Hope this helps!