Answer:
Step-by-step explanation:
There are seats.
Possible number of arrangements =
Total number of possible rotations=
Hence possible distinguish arrangements=
Answer: pie chart
Step-by-step explanation:
Answer:
x = -3, y = 2
Step-by-step explanation:
x - y = -5
x = -5 + y
Let's put this into the other equation
(-5 + y) + y = -1
-5 + 2y = -1
2y = 4
y = 2
Now we can solve for x by plugging y into either equation
x + (2) = -1
x = -3
The answer would be: a. Obtuse angle
Obtuse angles go from 91 degrees to 179 degrees.