The ferris wheel ride at the carnival has 15 cars. Each car holds 2 people. Let n represent the number of people on the ride at any one time. Q: Which of these expressions best describes n?

a. n ≤ 15
b. n = 30
c. n ≥ 15
d. n ≤ 30

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

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 of the following vectors are orthogonal to (2,1)? check all that apply