<span>Было - Х, в первый год увеличился на 20%, то есть на 0,2Х, во второй год на 10% , то есть на 0,1 *0,2Х. Вмете - 0, 22Х. Значит, на 22%.</span>
<span>√(54/125</span><span><span>) = <span>√(6*9/5*25</span><span><span>) = </span></span><span>3/5 √(6/5</span><span><span>) </span></span>
</span></span>
<span>√(248/128</span><span><span>) = <span>√(124/64</span><span><span>) = </span></span><span><span><span>√(31/16</span><span><span>) = </span></span></span></span>1/4 <span><span><span>√(31</span><span><span>) </span></span></span></span>
</span></span>
<span>√(13/32</span><span><span>) = <span>√(13/2*16</span><span><span>) = </span></span><span>1/4 √(13/2</span><span><span>)</span></span>
</span></span>
<span>√(17/81</span><span><span>) = 1/9 <span>√(17</span><span><span>) </span></span>
</span></span>
3z+5b=11.2
2z=3b+2.4
b=?
z=1.5b+1.2
3*(1.5b+1.2)+5b=11.2
4.5b+5b+3.6=11.2
9.5b=7.6
b=0.8
Вот тебе график функции, все на фотке
(3√5)² : 27 = (9*5):27 = 5/3
Ответ: 5/3