The answer is C. y = - 2x - 1
hope that helps!! :)
I think 10.2 when I use calculater
Answer:
Distance between point 
and midpoint of line joining 
and 
= 
units.
Step-by-step explanation:
Given:
Points:
To find distance from point A to midpoint of BC.
Midpoint M of BC:
[Plugging in points 
]
Distance between A and M:
[Plugging in points 
]
Since distance is always positive ∴ 
units
Divide the perimeter by 3 to find the side length.
Since the formula for the are of a triangle is
1/2 * b * h the height must be found.
If a perpendicular line is drawn from the apex of the triangle, a right triangle is formed with a base of 5 and a hypotenuse of 10. Also since it originally was equilateral the base angle is 60 degrees. The rules for finding lengths of sides of equal. Triangles is long leg = sqrt3 * short leg
the height is the long leg so the height is 5sqrt3.
A=(1/2)(10)(5sqrt3)= 25sqrt3
