Answer:
(-9, 10)
Step-by-step explanation:
The location of the midpoint of a line with endpoint at () and (
) is given as (x, y). The location of x and y are:
Given the endpoint (9,8) and Midpoint (0,9), the location of the other endpoint can be gotten from:
Hence the endpoint is at (x2, y2) which is at (-9, 10)
Answer:
Step-by-step explanation:
The perimeter of a polygon is simply sum of the lengths of all sides of the polygon.
Therefore, we can find this polygon's perimeter by adding up the length of each of its sides:
Since there is a lot to keep track of, I'd recommend picking any side and moving clockwise/counter-clockwise until you get all sides.
x² - x - 12 ≠ 0
x² - 4x + 3x - 12 ≠ 0
x (x - 4) + 3 (x - 4) ≠ 0
(x + 3)(x - 4) ≠ 0
x ≠ -3 or x ≠ 4
(B)
