Answer:
13
Step-by-step explanation:
=(−3−2)2+(−4−8)2
=(−5)2+(−12)2
=25+144
d=25+144
=√169
=13
Answer:
Step-by-step explanation:
-3 is the number u will get. Hope this helps!!
Based on the given, it can be said that the parabola is opening to the left since the focus is located at point (-2,0). Based on the basic property of the parabola, the distance between the vertex and the focus is equal to the distance from the vertex to the point where the directrix passes through. Also, the directrix is always parallel to the latus rectum. Therefore, equation of directrix, x=2
The triangle ABC is an isosceles triangle.
∴ ∠BAC = ∠BCA and hence ∠BCA = ∠CAD.
Since the alternate angles BCA and CAD are equal, BC║AD.
