Answer:
the 8th exterior angle is 49 degrees
Step-by-step explanation:
The sum of the exterior angles of an octagon is 360 degrees
(this is true for all polygons)
42°+55°+ 39°+ 20°+ 62°+45°,+ 47+x = 360
combine like terms
311+x=360
subtract 311 from each side
311-311 +x = 360-311
x=49
Answer:D
x = -10
x/4=-2.5
multiply both sides by 4
x/4*4=-2.5*4
-2.5 times 4 is -10
1/3
The number of people over 40 is 20 + 30 + 35 = 85.
So the probability is 85/255, which reduces to 1/3.
Graph each side of the equation and the solution is what the x-value is at the point of intersection. In this case is about -1.25.
:)))
