Estefaniamarilicolin
18.06.2020 •
Mathematics
Why is x^2-8x+20 always positive? ^in terms of completing square^
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Ответ:
x = 27 and m<A = 49 degrees
Step-by-step explanation:
The sum of the interior angles of a triangle is 180 degrees
3x-17+x+40+2x-5 = 180
6x + 18 = 180
6x = 162
x = 27
<A = 2x - 5
< A = 2(27) - 5
<A = 49 degrees