Determine if the relation is a function.{(-9, -6), (-9, 2), (1, 3), (4, -4), (9, 2)}
A. function
B. not a function
Answer: B
Mathematics
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Use Gaussian elimination to solve the linear system by finding an equivalent system in triangular form.2x + 5y + z = -263x - 3y - z = 213x + y + 3z = -11
A. (-3, -5, 1) B. no solution C. (1, -5, -3) D. (1, -3, -5)
Mathematics
Evaluate the expression.(1010)
A. 2 B. 1 C. 0 D. 3,628,800
Mathematics
Solve.The daily number of requests, f(x), for a song that a local radio station receives can be modeled by the formula
, where x is the number of days after the song has been released. During which time period will the daily number of requests be below 7?
A. between day 1 and day 3 B. between day 2 and day 6 C. between day 1 and day 4 D. between day 3 and day 4
Mathematics
Graph the set on a number line.(2, 7)
A. 
B. 
C. 
D. 
Mathematics