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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Find the value of the algebraic expression at the given replacement value.-x2 - 6y
when x = -2, y = -4
A. 16 B. 20 C. -28 D. -20
Mathematics
Simplify the expression. Assume that all variables are positive.
? 
A. 
B. 
C. 7x4
D. x4
Mathematics
Solve the problem.For 2009, the government of Country X collected $2.1 trillion in revenues, but spent $8.7 trillion. Write the government's budget deficit as a signed number.
A. -$10.8 trillion B. $6.6 trillion C. $10.8 trillion D. -$6.6 trillion
Mathematics
Solve the equation.
= 
- 
A. {1}
B. 
C. {28}
D. {0}
Mathematics