It takes a person 40 minutes to get to campus. he spends t minutes walking to the bus stop and the rest of the time riding the bus. his walking rate is 0.07 miles per minute and the bus travels at a rate of 0.5 miles per minute. the total distance walking and traveling by bus is given by the algebraic expression 0.07t + 0.5(40 - t). simplify the algebraic expression. do not factor.

the workers who do no drive has no reasonable reason to buy gasoline due to they don't have anything to use it for

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;

21

jk it's 20

step-by-step explanation: