Answer:
The length of BC is 17
Step-by-step explanation:
When we construct a triangle with the data, we will end up a isosceles triangle.
In a isosceles triangle , we know that tow angles and two sides are equal
The questions states that

Then sides AC and AB are also equal
On equation their values
2X - 8 = X+9
2X = X + 9 +8
2X = X + 17
2X - X = 17
X = 17
The length of BC = X = 17
Answer: The slope is m = 1
Step-by-step explanation:
-To find the slope, you need the slope formula:
where you have
and
on the equation.
-Next, you put the two points to the equation:

-And then you solve the equation:



Answer:
Angle Q
Step-by-step explanation:
As I said on my previous posts, all you need to remember is CPCTC (corresponding parts of congruent triangles are congruent)
Q corresponds to B, and is thus congruent
The slope is - 3/10
Y over x