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
Answer: A
Mathematics
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Solve.An airplane is flying west at an altitude of 31,424 feet. Another plane is flying northeast at an altitude of 28,510 feet. How much above the 
plane is the 
plane when their paths cross?
A. 2914 feet B. 2884 feet C. 2844 feet D. 3114 feet
Mathematics
Solve the equation.2-3x + 9 = 8
A. {-4} B. {-2} C. {4} D. {2}
Mathematics
Solve.5x + 10 - 4x = 3 - 4
A. -9 B. 9 C. 11 D. -11
Mathematics
Find the domain and the range for the function.
A. D: (-?, ?), R: (-?, ?) B. D: (-?, 6) ? (6, ?), R: (-?, 1) ? (1, ?) C. D: (0, ?), R: (1, ?) D. D: (-?, -6) ? (-6, ?), R: (-?, ?)
Mathematics