1) ![7320000 = 732*10^4 7320000 = 732*10^4](https://tex.z-dn.net/?f=7320000%20%3D%20732%2A10%5E4)
2) ![(\frac{x^{-6} }{3y^{-7}})^{-2} * 12x^8y^4 = (\frac{3y^{-7}}{x^{-6}})^2 * 12x^8y^4 = (\frac{x^6}{3y^7})^2 * 12x^8y^4 = \frac{x^{12}}{3y^{14}} * 12x^8y^4 = \frac{x^{12} * 12x^8y^4}{3y^{14}} = \frac{12x^{20}}{3y^{10}} = \frac{4x^{20}}{y^{10}}; (\frac{x^{-6} }{3y^{-7}})^{-2} * 12x^8y^4 = (\frac{3y^{-7}}{x^{-6}})^2 * 12x^8y^4 = (\frac{x^6}{3y^7})^2 * 12x^8y^4 = \frac{x^{12}}{3y^{14}} * 12x^8y^4 = \frac{x^{12} * 12x^8y^4}{3y^{14}} = \frac{12x^{20}}{3y^{10}} = \frac{4x^{20}}{y^{10}};](https://tex.z-dn.net/?f=%28%5Cfrac%7Bx%5E%7B-6%7D%20%7D%7B3y%5E%7B-7%7D%7D%29%5E%7B-2%7D%20%2A%2012x%5E8y%5E4%20%3D%20%28%5Cfrac%7B3y%5E%7B-7%7D%7D%7Bx%5E%7B-6%7D%7D%29%5E2%20%2A%2012x%5E8y%5E4%20%3D%20%28%5Cfrac%7Bx%5E6%7D%7B3y%5E7%7D%29%5E2%20%2A%2012x%5E8y%5E4%20%3D%20%5Cfrac%7Bx%5E%7B12%7D%7D%7B3y%5E%7B14%7D%7D%20%2A%2012x%5E8y%5E4%20%3D%20%5Cfrac%7Bx%5E%7B12%7D%20%2A%2012x%5E8y%5E4%7D%7B3y%5E%7B14%7D%7D%20%3D%20%5Cfrac%7B12x%5E%7B20%7D%7D%7B3y%5E%7B10%7D%7D%20%3D%20%5Cfrac%7B4x%5E%7B20%7D%7D%7By%5E%7B10%7D%7D%3B)
3) ![\frac{4^016^{-9}}{64^{-8}4^2} = \frac{1 * 16^{-9}}{64^{-8}4^2} = \frac{64^8}{16^94^2} = \frac{4^{24}}{4^{18}*4^2} = \frac{4^{22}}{4^{18}} = 4^4 = 256; \frac{4^016^{-9}}{64^{-8}4^2} = \frac{1 * 16^{-9}}{64^{-8}4^2} = \frac{64^8}{16^94^2} = \frac{4^{24}}{4^{18}*4^2} = \frac{4^{22}}{4^{18}} = 4^4 = 256;](https://tex.z-dn.net/?f=%5Cfrac%7B4%5E016%5E%7B-9%7D%7D%7B64%5E%7B-8%7D4%5E2%7D%20%3D%20%5Cfrac%7B1%20%2A%2016%5E%7B-9%7D%7D%7B64%5E%7B-8%7D4%5E2%7D%20%3D%20%5Cfrac%7B64%5E8%7D%7B16%5E94%5E2%7D%20%3D%20%5Cfrac%7B4%5E%7B24%7D%7D%7B4%5E%7B18%7D%2A4%5E2%7D%20%3D%20%5Cfrac%7B4%5E%7B22%7D%7D%7B4%5E%7B18%7D%7D%20%3D%204%5E4%20%3D%20256%3B)
4)
A)
39000;" alt="(5.4 * 10^4) and (3.9*10^4); (54000) and (39000); 54000 > 39000;" align="absmiddle" class="latex-formula">
3.9 * 10.4;" alt="5.4 * 10^4 > 3.9 * 10.4;" align="absmiddle" class="latex-formula">
B)
0.0000025;" alt="2.5 * 10^{-5}..and..2.5 * 10^{-6}; 0.000025..and..0.0000025; 0.000025 > 0.0000025;" align="absmiddle" class="latex-formula">
2.5 * 10^{-6};" alt="2.5 * 10^{-5} > 2.5 * 10^{-6};" align="absmiddle" class="latex-formula">
C) Аналогично,
7.9 * 10^{-7};" alt="7.4*10^7 > 7.9 * 10^{-7};" align="absmiddle" class="latex-formula">
5) 1 кв. м. = 100 x 100 кв. см.
Значит, 1 кв. см. =
кв. м.
;
Аналогично,
кв. км.;