Answer:156.6 i think i could be wrong tho
Step-by-step explanation:
B) One solution: x = 0, y = 0
C) One solution: x = 1, y = 5
D) Infinite many solutions
Answer:
no solution
Step-by-step explanation:
a solution would mean a point where the two lines cross. theres no such thing for parallel lines.
but if the lines are the same, they are parallel and cross everywhere, that would give infinite solutions.
if they would cross once, it would mean one solution
The size of angle x is 99 degree
The exterior angle theorem states that the measure of an exterior angle is equal to the sum of the measures of the two remote interior angles of the triangle. straight angle: an angle whose sides lie in opposite directions from the vertex in the same straight line and which equals two right angles.
We have,
∠CDE =
∠BCD =
∠ABC =
According to the question
Angle Addition Postulate and definition of straight angle:
∠BDC+∠CDE =
Substitute into : ∠BDC + = ∠BDC = - ∠BDC =
Exterior Angle Theorem:
∠BDC + ∠BCD = ∠ABC
Substitute into :
+
=
=
hence, the size of angle x is 99 degree
Learn more about exterior angle theorem from here
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Answer:
50
Step-by-step explanation:
42+123=165
165+50=215
215+145=360