Solve.Find f-1(5) and (f-1 ? f)(4) for the function f = {(1, 7), (4, 3), (2, 5)}.
A. 
B. {2, 4}
C. {5, 3}
D. {2, 3}
Answer: B
Mathematics
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Use the order of operations to evaluate each problem.72 - 4 ? 5
A. 45 B. 225 C. 29 D. 105
Mathematics
Solve. 
? 9
A. x ? -1 or x ? 17 B. -9 ? x ? 9 C. -1 ? x ? 17 D. -17 ? x ? 1
Mathematics
Find the expected value.A car agency has found daily demand to be as shown in the table.
Find the expected number of customers.
A. 9 B. 12 C. 10 D. 2
Mathematics
Graph the ellipse. Give the coordinates of the center, as well as the values of a and b.3x2 + 7y2 - 63 = 0
A. center (0, 0), a = 
, b = 3
B. center (0, 0), a = 
, b = 
C. center (0, 0), a = 3, b = 
D. center (0, 0), a = 
, b = 
Mathematics