If it's a regular octahedron, then you can calculate it using the formula

where

is the length of the edge.
If it's not regular, you have to calculate the area of each side individually.
Answer:
102°
Step-by-step explanation:
This is an isosceles triangle
x = 180 - 39 - 39
x = 102°
Answer:
-5/12
Step-by-step explanation:
-1 times 1 is -1 so -1/3
2 times 2 is 4 so 4/5
-1/3 divided by 4/5
to make it easier we will write like this:
-1/3 times 5/4
-1 times 5=-5
3 times 4=12
so the final answer is -5/12
HOPE IT HELP U
First, we can eliminate d(x) because we can see it's a linear line. We can also eliminate a(x) because it's also a linear line. Both b(x) and c(x) have an asymptote. on b(x) you can see that x = 3 is the asymptote. For c(x) if it's graphed, it has a horizontal asymptote at y = -1.
Hope this helps!