Answer:
f(19) = - 27/7
Step-by-step explanation:
[tex]f(x) = \frac{3}{x + 2} - \sqrt{x - 3} \\ f(19) = \frac{3}{19 + 2} - \sqrt{19 - 3} \\ f(19) = \frac{3}{21} - \sqrt{16} \\ f(19) = \frac{1}{7} - 4 \\ f(19) = \frac{1}{7} - \frac{28}{7} \\ f(19) = - \frac{27}{7} [/tex]
