Tuition and fees t during year x at private colleges can be modeled by t = 755.7(x-1985) +6121. according
to the model, what was the tuition and fees in 2014?

Tution and fees = 28036.3

Step-by-step explanation:

Here you have to replace "x" by 2014, because "x" represents the year and "T" the tuition and fees of that year.

T = 755.7(x-1985) +6121

T = 755.7(2014-1985) + 6121

T = 28036.3

it should be a and d. lmk if i'm wrong xd

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;