Respuesta :

sqdancefan

Answer:

  -1

Step-by-step explanation:

"Evaluate the expression for ..." means "put these numbers where these variables are and do the arithmetic."

  [tex]\sqrt{b}+\dfrac{25}{a}=\sqrt{16}+\dfrac{25}{-5}\\\\=4-5=\boxed{-1}[/tex]

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