Mrs. Lang is hanging drawings for the school art show across a wall that is 2.8 meters wide. She determines
each picture, along with the space needed around
each picture, will take up 0.4 meter along the wall. How
many pictures can she hang in one row across the wall?

dont understand

step-by-step explanation:

the anwser is d) 75°

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;

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy