Respuesta :

sqdancefan

Answer:

  √35

Step-by-step explanation:

The right triangles are all similar, so the ratios of long leg to hypotenuse are the same for all:

  z/7 = 5/z

  z² = 35 . . . . multiply by 7z

  z = √35

bigbrainman121

Answer:

√35

Step-by-step explanation:

The right triangles are all similar, so the ratios of long leg to hypotenuse are the same for all:

 z/7 = 5/z

 z² = 35 . . . . multiply by 7z

 z = √35