2013 <span> рыцарей было на острове сначала.</span>
<span>ответ: 100%.............</span>
2)(3x-2)*(5-2x)+6x^2 при x= -2
(3×(-2))×(5-2(-2))+6×(-2)2=-6×9+24=-30
3) 2y*(y-8)=(y+1)*(2y-3)
2y2-16y=2y2-3y+2y-3
2y2-16y-2y2+3y-2y=-3
-15y=-3
y=3/15
y=0,2
4)
<span>An accurate clock shows 8 o'clock in the morning. Through how may degrees will the hour hand rotate when the clock shows 2 o'clock in the afternoon?</span>