Is the following correspondence a function?Domain: All students attending the University of OhioCorrespondence: Each student's teachersRange: A set of teachers
A. No
B. Yes
Answer: A
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A point lying on the terminal side of angle ? is given. Find the exact value of the indicated trigonometric function of ?.(3, 4) Find cos ?.
A. 
B. 
C. 
D. 
Solve the problem.A rectangular garden has dimensions of 23 feet by 19 feet. A gravel path of equal width is to be built around the garden. How wide can the path be if there is enough gravel for 400 square feet?
A. 5 ft B. 4 ft C. 6.5 ft D. 6 ft
Solve.A man earned $2500 the first year he worked. If he received a raise of $500 at the end of each year, what was his salary during the 15th year?
A. $10,000 B. None of these C. $7000 D. $9500
Identify the domain and range of the relation.{(-2, 2), (-1, -1), (0, -2), (1, -1), (3, 7)}
A. domain: {-2, -1, 0, 1, 3} range: {2, -1, -2, 7} B. domain: {2, -1, -2, 7} range: {-2, -1, 0, 1, 3}