5. On circle C, points A and B are separated by an arc whose length if 18 centimeters. If the radius of circle C is 8 centimeters, then which of the following is the measure of central angle, 8. in degrees?
18 cm
(1) 129
(3) 160
(2) 259
(4) 20
e
8 cm
c

ok

step-by-step explanation:

l.jnl.j/n.m,lm,

step-by-step explanation:

a

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;