8. The heights of men in a survey are distributed normally about the mean. According to the graph, about what percent of men aged 25 to 34 are less than 70 inches tall?
Heights of Men Ages 25-34
20
Percent of Men
10
64
66
74
76
68 70 72
Height (inches)
55%
58%
39%
75%

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6