Solve the problem.If n(A) = 46, n(B) = 45, and n(A ? B) = 85, find n(A ? B).
A. 6
B. 79
C. 91
D. 12
Answer: A
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Perform the indicated operations, expressing the answer in simplest form with rationalized denominators.
(
- 
)
A. 5
- 10
B. 45
C. 25 - 5
D. 25
Solve the problem.Let u = 3i, v = i + j. Find 2u - v.
A. 5i - j B. 5i - 2j C. i - 5j D. 11i + j
Solve the problem.Suppose that P dollars is invested in a savings account at interest rate i, compounded quarterly for 6 months. The amount A in the account after 6 months is given by
.Find an equivalent expression for A.
A. A = P + 
+ 
B. A = P + 
+ 
C. A = P + 
+ 
D. A = P+ 
David and Nick were roommates in a dormitory and after graduation need to divide 5 vinyl records. They decided to use the adjusted winner method, and the table shows the points they assigned to each record. Which division is fair?
