3- 5(2x+ 4)≥ 7- 2x
3- 10x- 20≥ 7- 2x
-10x+ 2x≥ 7- 3+ 20
-8x≥ 24 |: (-8)
x≤ -3
(-∞; -3]
f(x)=√x
f( 1/2601)=√1/2601 = 1/51
(196; А)
f(196)=√196 =14
A=14
(196 ; 14)
2 * 2.26 = 5.2
1.5 * 2.26 = 1.3
(5.2 + 1.3) * 2 = 13.6 ( Т.к. стен по 2 )
0.2 * 0.3 = 0.06
13.6 / 0.06 = 226.6 ~ 227 штук