Question

va rog ajutor,dau coroana
cl 7

Answer 1

$m_{a} = \frac{a + b}{2} = \frac{ \sqrt{45} + \sqrt{125} }{2} = \frac{3 \sqrt{5} + 5 \sqrt{5} }{2} = \frac{8 \sqrt{5} }{2} = 4 \sqrt{5}$

$m_{g} = \sqrt{a \times b} = \sqrt{45 \times 125} = \sqrt{5625} = \sqrt{ {75}^{2} } = 75$