Find the mode or modes (if any).20, 44, 46, 44, 49, 44, 49
A. 46
B. 49
C. 44
D. 42.3
Answer: C
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Find the probability.The biology faculty at a college consists of 8 professors, 15 associate professors, 14 assistant professors, and 9 instructors. If one faculty member is randomly selected, find the probability of choosing a professor or an instructor.
A. 
B. 
C. 
D. 
Find the domain and range for the function.
A. D: {-6, -4, -2, 2, 4, 6}; R: {-4, -2, -1, 3, 4, 6} B. D: {-6, -4, -2, 0, 2, 4, 6}; R: {-4, -2, -1, 3, 4, 6} C. D: {-6, -4, 4, 6}; R: {-4, -2, 4, 6} D. D: {-4, -2, -1, 3, 4, 6}; R: {-6, -4, -2, 2, 4, 6}
Solve.A collection of dimes is arranged in a triangular array with 18 coins in the base row, 17 in the next, 16 in the next, and so forth with 1 dime in the last row. Find the value of the collection.
A. $8.55 B. $1.71 C. $34.20 D. $17.10
Use the horizontal line test to determine if the function is one-to-one.
A. No B. Yes