Answer:
y = - 7
Step-by-step explanation:
The equation of a horizontal line is
y = c
where c is the value of the y- coordinates the line passes through.
The line passes through (5, - 7) with y- coordinate - 7, thus
y = - 7 ← equation of horizontal line
A,C,D
Answer: 9.9 Original answer is 10.5
2 hours
308-100=208
208÷52=2
A linear pair are two given angles whose sum is equal to .
Let the exterior angle be represented by , and the three interior angles of the triangle be represented by , and .
Assume that the vertex angle is the linear pair to the exterior angle .
i.e + = (sum of angles on a straight line)
Thus,
i. + = (sum of two opposite interior angles is equal to an exterior angle)
⇒ = -
Also,
= -
But,
+ + = (sum of angles in a triangle)
⇒ = - ( + )
and
+ = -
ii. + + = (sum of angles in a triangle)
= - ( + )
+ =
155.5%