A person starts walking from home and walks 2 miles east, 7 miles southeast, 5 miles south, 3 miles southwest and 4 miles east. What is the total displacement vector of walk and walked straight home?

Step-by-step explanation:

2+7+5+3+4=21

if there was a picture i could calculate the miles it would take if they went straight home instead of making turns

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step-by-step explanation:

just for that im not answering

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;