Step-by-step explanation:
i think this is what you are asking for
To find the mean, aka average, we must add all the values of the table, then divide that sum by the number of values
Answer:
x = 20
Step-by-step explanation:
The 3 arcs UV, VW, WX form a semicircle, so sum to 180° , that is
4x + 2 + x + 78 = 180
5x + 80 = 180 ( subtract 80 from both sides )
5x = 100 ( divide both sides by 5 )
x = 20