<span>
![(\frac{64}{1000})^{-1/3}](https://tex.z-dn.net/?f=%28%5Cfrac%7B64%7D%7B1000%7D%29%5E%7B-1%2F3%7D)
= ∛(1000/64) = 10/4 = 2,5
</span>
![(\frac{49}{64})^{-1/2}](https://tex.z-dn.net/?f=%28%5Cfrac%7B49%7D%7B64%7D%29%5E%7B-1%2F2%7D)
= √(64/49) = 8/7 = 1
![(\frac{25}{4})^{1/2}](https://tex.z-dn.net/?f=%28%5Cfrac%7B25%7D%7B4%7D%29%5E%7B1%2F2%7D)
= √<span>(25/4) = 5/2 = 2,5
</span>
20p-50-2p²=-2(p²-10p+25)=-2(p-5)²
Р=6+10+34=50, ВК=(1/2)(ВА+ВС)=(1/2)(6+10)=8
Вот решения заданий на 1 балл
1) S = 800 - 70t
2) <span>3x² - 12</span> ≠ 0
3(x² - 4) ≠ 0
x² - 4 ≠ 0
(х - 2) (х + 2) ≠ 0
х ≠ 2 и х ≠ - 2
D(f) - все рац. числа кроме 2 и -2.
3) <span>В)y=4/x не линейная
4) </span> 1) y=4x и 3) <span>y=2x - 7</span>