Answer:
Step-by-step explanation:
x-coordinate of midpoint: is -8 + (2 - [-8]), or -8 + 10/2, or - 8+ 5, or x = -3.
y-coordinate of midpoint: notice that the distance from -6 to -10 is 4; the y-coordinate of the midpoint is found by starting with -6 and adding 4/2: -4
The midpoint is (-3, -4)
Answer:2x-5y=17;6x-5y=-9
Step-by-step explanation:
Solve equation [2] for the variable x
[2] 6x = 5y - 9
[2] x = 5y/6 - 3/2
// Plug this in for variable x in equation [1]
[1] 2•(5y/6-3/2) - 5y = 17
[1] - 10y/3 = 20
[1] - 10y = 60
// Solve equation [1] for the variable y
[1] 10y = - 60
[1] y = - 6
// By now we know this much :
x = 5y/6-3/2
y = -6
// Use the y value to solve for x
x = (5/6)(-6)-3/2 = -13/2
Explanation: if you were to flip the line and triangle down, you could see that 60° is in the left corner and 120° and 60° equal 180°
final answer: 120°
The square root of 5 is <span>2.2360679775</span>