Answer:
|-6 -(-3)| = 3
Step-by-step explanation:
The two points lie on a horizontal line, so the distance between them is the (positive) difference of their x-coordinates:
|B - A| = |-6 -(-3)| = |-6+3| = |-3| = 3
The distance between these points is 3 units.
Answer:
∠ A = 72°
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°, thus
∠ ECD = 180° - (90 + 54)° = 180° - 144° = 36°
∠ ACB = ∠ ECD = 36° ( vertical angles )
Since AC and BC are congruent then Δ ABC is isosceles, thus the base angles are congruent, that is
∠ A = ∠ B
∠ A = 
= 
= 72°
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I believe that the answer would be 8, but I'm not exactly sure.
I hope that this helps ~
Answer: y= -3x + 5
Step-by-step explanation:
y2-y1 divide by x2-x1 = m
therefore you would do 8 - -4= 12 divide by -1 - 3= -4 which gives you 12 divided by -4
m= 12/-4 aka m = -3
and to find the y intercept you should use one of the point coordination to plug it into the formula y=mx+ b
use (-1,8)
8= -3(-1) + b
8= 3+b
subtract 3 from both sides
b= 5
then plug the m and the b into y=mx + b
and you get y= -3 + 5
