The perpendicular slope is 5/4x
Answer:

Step-by-step explanation:
Given:
An isosceles triangle ABC with AB = AC.
∠A = 
∠B = 
∠C = 
We know that, for an isosceles triangle, the angles opposite equal sides are also equal to each other.
Therefore, ∠B = ∠C
⇒ 
⇒ 
∴ ∠C =
°
Now, the sum of all the interior angles of a triangle is always 180°.

Therefore, the value of 'y' is 5.
4,3,2,1,0,-1, -2, -3, -4,
Answer:25
Step-by-step explanation:25
Use the formula
a
n
=
a
1
r
n
−
1
a
n
=
a
1
r
n
-
1
to identify the geometric sequence.
a
n
=
12
2
n
−
1
a
n
=
12
2
n
-
1
Hope this helps!