Aline segment is drawn from (+1, +9) to (+4, +9) on a coordinate grid. which answer explains one way that the length of this line segment can be determined? a. add 9 + 4. b. add 4 + 1. c. subtract 9 – 4. d. subtract 4 – 1.

The answer is subtract 4-1

because the theres two 9's thats a simple way to put it lol

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;