срочно даю 50 баллов. Created by hvanpolina66. algebra-ru

срочно даю 50 баллов...

hvanpolina66 @hvanpolina66

September 2021 1 8 Report

срочно даю 50 баллов

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NNNLLL54

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Ответ:

$1)\ \ 2\, 370\, 000=2,37\cdot 10^6\ \ \ ,\ \ \ otvet: D) .\\\\\\2)\ \ \Big(\dfrac{n^{-4}}{4m^{-5}}\Big)^{-2}\cdot \dfrac{n^6\, m^2}{32}=\dfrac{n^8}{(2^2)^{-2}\cdot m^{10}}\cdot \dfrac{n^6\, m^2}{2^5}=\dfrac{2^4\, n^8}{2^5\, m^8}=\dfrac{n^8}{2\, m^8}$

$3)\ \ \dfrac{5^0\cdot 25^{-7}}{125^{-6}\cdot 5^1}=\dfrac{1\cdot (5^2)^{-7}}{(5^3)^{-6}\cdot 5^1}=\dfrac{5^{-14}}{5^{-18}\cdot 5^1}=\dfrac{5^{-14}}{5^{-17}}=5^{-14-(-17)}=5^3=125$

$4)\ \ 8,3\cdot 10^3=8300\ >\ 7,8\cdot 10^3=7800\\\\1,3\cdot 10^{-3}=0,0013\ \ 6,8\cdot 10^{-5}=0,000068$

$5)\ \ 2,49\cdot 10^2=249$ км² = 249 000 000 м² = 2,49*10⁸ м² =

= 2 490 000 000 000 см² = 2,49*10¹² см²

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