Rewrite 7 − 8 using the additive inverse and display the new expression on a number line. 7 + (−8) an image of a horizontal number line is shown with labels from negative 2 to positive 8. an arrow begins at 0 and ends at 7. another arrow begins at 7 and ends at negative 1. 7 + 8 an image of a horizontal number line is shown with labels from 0 to 15. an arrow begins at 0 and ends at 7. another arrow begins at 7 and ends at 15. 7 − (−8) an image of a horizontal number line is shown with labels from 0 to 15. an arrow begins at 0 and ends at 7. another arrow begins at 7 and ends at 15. 8 − 7 an image of a horizontal number line is shown with labels from negative 2 to positive 8. an arrow begins at 0 and ends at 8. another arrow begins at 8 and ends at 1.

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;

a

step-by-step explanation:

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft

where is the graph or the picture? ?