Question

6. (1,0) CALCULE o valor destas expressões:
a) 7.23 - 22.5
b) √16. 32 - 62:√9

Answer 1

$a) 7*23 - 22*5\to 161-110\to 51\\ \\\\\\ b) \frac{ \sqrt{16} * 32 - 62}{ \sqrt{9} } \to \frac{4*32-62}{3} \to \frac{128-62}{3} \to \frac{66}{3} \to 22$