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alishabhappy1
11.05.2021 •
Mathematics
When can you say that there is no solution for a system of linear equation
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Ответ:
You can say there is no solution for a system of linear equation when the graphs are PARALLEL to each other.
ONE solution: when both lines intersect at one point
INFINITE solution: when the line goes on forever
NO solution: is when the lines are parallel to each other.
Ответ:
Answer x = 25°
In triangle ABC
Angle BAC = BCA
= 50
Because its isoceles triangle and base angles are equal.
x + x + 80 = 180
2x = 100
x = 50
Angle ACD is exterior angle so 80 + 50
= 130
Triangle ACD is also Isoceles Angle x = Angle CDA
130 + x + x = 180
2x = 50
x = 25