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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Perform the addition or subtraction.(5x7 - 4x4 + 7x) + (3x7 - 3x4 - 3x)
A. 8x7 - 7x4 + 4x B. 5x12 C. 10x7 + 2x4 - 7x D. 8x - 7x7 + 4x4
Mathematics
Provide an appropriate response.If 7x2 + 4y2 = 1, then 
=
A. 
.
B. 7x + 4y.
C. 
.
D. 14x + 8y.
E. - 
.
Mathematics
Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.2x + 2y + z = -63x - 5y - z = -223x + y + 5z = -4
A. (-5, 1, 2) B. (2, 1, -5) C. (-5, 2, 1) D. No solution
Mathematics
Determine if the stated number could represent a probability.-3.2
A. Yes B. No
Mathematics