11. The value of a piece of machinery, in dollars, after t years is described by the function below.
f(t) = 12,500 - 1,600t
What is the value of the machinery after 4
years?

A. $7,700
B. $6,400
C. $6,100
D. $10,900

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).

Which system of linear inequalities is represented by the graph?

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers?