Question

calculati media aritmetica a numerelor a si b stind ca a=2 la a 2+2 supra 3 +15 supra 9 si b=0,5+5÷2​

Answer 1

Răspuns:

$a = {2}^{2} + \frac{2}{3} + \frac{15}{9} \\ = 4 + \frac{21}{9} \\ = \frac{57}{9}$

$b = \frac{1}{2} + \frac{5}{2} \\ = \frac{6}{2} \\ = 3$

$\frac{a + b}{2} \\ = \frac{\frac{57}{9} + 3}{2} \\ = \frac{ \frac{64}{9} }{2} \\ = \frac{32}{9}$