Answer:
The vectors form an obtuse angle.
Step-by-step explanation:
On a graph, -5, 1 is in the second quadrant and 8, 6 is in the first. The angle about the orgin is obtuse.
Finding the dot product between them results in a negative, which also means the angle is obtuse.
Answer:
a and b are paralell
Step-by-step explanation:
I'm not sure abt the other part but I'm pretty sure its consecutive interior angles converse
Answer:
B. 6 sides
Step-by-step explanation:
Interior angles of a n side Regular Polygon = (180n – 360) / n
120 = (180n – 360) / n
120n =180n - 360
180n - 120n = 360
60n = 360
n = 6
check: sum of interior angles of 6 side polygon: 180 * (6-2) = 720
720/6 = 120
Answer:
A x< of 6
Step-by-step explanation:
2x-7=9
Add 7 to both sides
2x=16
Divide both sides by 2
x=8
Final answer: The number is 8