Question

Please help anyone.​

Answer 1

Answer:

- $\frac{27}{7}$

Step-by-step explanation:

Given

f(x) = $\frac{3}{x+2}$ - $\sqrt{x-3}$

Evaluate f(19) by substituting x = 19 into f(x)

f(19) = $\frac{3}{19+2}$ - $\sqrt{19-3}$

       = $\frac{3}{21}$ - $\sqrt{16}$

       = $\frac{1}{7}$ - 4

       = $\frac{1}{7}$ - $\frac{28}{7}$ = - $\frac{27}{7}$