Sam is drawing polygons on a computer. He wants t map a regular 9- sided polygon back onto itself using a reflection. Which set of lines can
Sam choose from for his line of reflection?
A.) any line passing through the center of the polygon
B.)any line joining the midpoints of any two sides
C.)any perpendicular bisector of one of the sides
D.)any line parallel to a side of the polygon

Step-by-step explanation:

C.) is the correct option

d

step-by-step explanation:

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;