Answer:
Step-by-step explanation:
it is 25 
Step-by-step explanation:
Let the midpoint formula be expressed as;
M(X,Y) = {x2+x1/2, y2+y1/2}
X = x2+x1/2
Y = y2+y1/2
Get x2
-3 = x2 + 1/2
-6 = x2 + 1
x2 = -6-1
x2 = -7
Get y2;
Y = y2+y1/2
8 = y2+6/2
16 = y2+6
Y2 = 16-6
y2 = 10
hence the coordinate of B is (-7, 10). Option A is correct
Answer:
Jonathan's solution
is correct.
Step-by-step explanation:
Given system of equations are:

Now
The graph of the linear equation
cuts the y-axis at the point
and x-axis at 
And the graph of the linear equation
cuts the y-axis at the point
and x-axis at 
And their point of intersection is 
And this is Jonathan's solution.
We can see from graph that point of intersection is 
Answer:
60°
Step-by-step explanation:
30° + 90° = 120°
180° - 120° = 60°
180 is the sum of interior angels