Sarah hiked a path that took her from 34 feet below sea level to 52 feet above sea level. What was the change in her elevation?​

Step-by-step explanation:

Work hard. Push yourself, because no one else is going to do it for you.

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Step-by-step explanation:

Hello!

I am not doing the well on the speaking english but here

is the answers that you seem to be seeking of for it!

i think the answer is b.

step-by-step explanation:

not 100% sure though.

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;