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 power of i.i46
A. 1 B. -i C. -1 D. i
Mathematics
Simplify the expression.
+ 
A. 
B. 
C. 
D. 3
Mathematics
Add and write the resulting polynomial in descending order of degree.(5a4 + 7a2) + (2a4 + 2a2)
A. 16a12 B. 16a6 C. 7a4 + 9a2 D. 7a8 + 9a4
Mathematics
Translate the problem to a system of equations; then solve using the elimination method.Helen Weller invested $15,000 in an account that pays 10% APR. How much additional money must be invested in an account that pays an APR of 13% so that the total interest is equal to the interest on the two investments at the rate of 11%?
A. $15,000 B. $12,000 C. $7500 D. $11,000
Mathematics