Answer:
0.143059384
Step-by-step explanation:
=> [tex]\frac{\sqrt{19+6^2} }{7.2^2}[/tex]
=> [tex]\frac{\sqrt{19+36} }{51.84}[/tex]
=> [tex]\frac{\sqrt{55} }{51.84}[/tex]
=> [tex]\frac{7.416}{51.84}[/tex]
=> 0.143059384
