60% is the answer bebe :)
Answer:
a=3 IF it's continuos
Step-by-step explanation:
for continuity, the left limit of the first equation must be equal to the right limit of the third equation
and they are equal, as you can see putting x=2 in both equations
to be continuos in a point c, f(x) must:
be defined in c (so f(c) exists)
the limit in c exists (in this case both from left and right)
the limit in c must be equal to f(c)
AB = AC, so this is an isosceles triangle, then angle B=angle C =66⁰.
m∠BAD = m∠CAD, so AD is a bisector.
In an isosceles triangle, bisector is also median and height.
So AD is perpendicular bisector.
So angle x = 90⁰.
In triangle ABC
m∠A+m∠B+m∠C=180⁰
m∠A+66+66=180
m∠A=180-66-66=48⁰
m∠A=48⁰
AD is a bisector of A, so y=m∠A/2=48⁰/2=24⁰
x=90⁰, y=24⁰
Answer is A
