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hopej1980
20.09.2020 •
Mathematics
(-5+-7+2)÷(-6-(-1-6--3))
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Ответ:
5
Step-by-step explanation:
Ответ:
M<C = 20°
Step-by-step explanation:
Because they’re vertical angles, that means they’re equal to each other so:
m<C = m<D
x = -3x + 80
x + 3x = 80
4x = 80
x = 20
Since m<C equals x, that means m<C is 20°