Answer:
40
Step-by-step explanation:
1.Kknow the following information;
Remember, the sum of degrees of angles in a triangle is 180.
So say if a traingle contained;
<1, <2, <3,
Then:
<1 + <2 + <3 = 180
2. State the given, and set up an equation;
In this case, it is given that;
<1 = 115
<2 = 25
Therefore, set up the equation;
115 + 25 + <3 = 180
3. Solve the equation;
115 + 25 + <3 = 180
Simplify,
140 + <3 = 180
Inverse operations,
140 + <3 = 180
-140 -140
<3 = 40
A(-1,3), B(-2,5)
Slope equation : (y₂-y₁) / (x₂-x₁)
Plug in the values into the equation.
AB = (5 - 3) / (-2+1)
Simplify.
AB = 2 / -1
AB = -2
So, your slope is -2.
~Hope I helped!~
The slope of this is 1/2.
