Area=side^2
10-y is the side
(10-y)^2 is area
aera=100-20y-y²
The average will be the total points divided by the number of games:
(x+y+z) / 3
B, 3x-2y=2 in standard form is y=-1-3/-2x.
First solve the triangle:
75° + 75° + x = 180°
150° + x = 180°
x = 180° - 150°
Therefore x = 30°
Then, use the geometrical property of vertically opposite angles.
Therefore. x° = 30°
