Answer:
If AB and CD are perpendicular, (slope of AB) x (slope of CD) = -1
9/a = -1
a = -9
Answer:
113.1 yards
Step-by-step explanation:
...........
Hi,
The like terms are 2xy, -xy and (1/2)xy, since they have the same variables and powers.
Answer:
(8, 2)
Step-by-step explanation:
When taking a point and reflecting it over the y-axis, the x coordinate turns into its opposite.
(-8, 2) ⇒ (8, 2)
