Answer:
0.8449584377
Step-by-step explanation:
[tex]-76.37[/tex]
[tex]\sqrt{72} - \sqrt{80} (\sqrt{90})[/tex]
[tex]= 6\sqrt{2} - 60 \sqrt{2}[/tex]
[tex]= -54 \sqrt{2}[/tex]
[tex]= -76.37[/tex]
