Perform the division.(x2 - 4) ÷ (x + 2)
A. x - 2
B. x2 - 2
C. x + 4
D. x - 4
Answer: A
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Find the center of mass of a thin plate of constant density covering the given region.The region bounded by the parabola x = y2 and the line x = 16
A. 
= 
, 
= 0
B. 
= 16, 
= 0
C. 
= 0, 
= 
D. 
= 
, 
= 0
Use the root test to determine if the series converges or diverges.
A. Converges B. Diverges
Solve the problem.A hotel manager predicted an average occupancy rate of 
during the slow season. The occupancy rate turned out to be 0.96. Was the manager better off or worse off than he expected to be?
A. Worse off B. Better off
Solve the problem.A bookstore is having a sale. All books included in the sale have a colored sticker on them to indicate the sale price. There are green stickers, red stickers, and orange stickers. Bob, Sue, and Fred each make purchases of books that are on sale. Each row of the table gives information about the numbers of book purchases and the total cost of the purchase (before taxes).
Use this information to set up a matrix equation of the form 
which can be solved to determine the price for each type of sale book. Solve this matrix equation to find the price of a
book with a red sticker.Use the fact that for A = 
, A-1 = 
.
A. $6.50
B. $6.99
C. $6.87
D. $6.79