To figure this out we keep in mind two rules
1. A triangles sum of angles is 180
2. An angle of a triangle can not be 0
So the answer is the following
2, 3 & 4
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Answer:
One Solution
Step-by-step explanation:
x + 3y = 3
x - y = -3
4y = 6 Subtract to solve by elimination.
y =
Divide by 4.
x -
= -3 Substitute
for y in the original equation.
x = -
Add
.
Answer:
C
Step-by-step explanation:
both 4 and -4 are 4 units away from 0