Find the power of i.(-i)11
A. 1
B. -1
C. -i
D. i
Answer: D
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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 green sticker.Use the fact that for A = 
, A-1 = 
.
A. $4.99
B. $4.89
C. $4.91
D. $4.96
Solve the system of equations. If the system is dependent, express solutions in terms of the parameter z.x - y + z = -1x + y + z = 5x + y - z = -3
A. (4, -2, 3) B. (-2, 3, 4) C. No solution D. (-2, 4, 3)
The table gives the winner of the weekly gymnastics competition for the first eight weeks of the season. 
What is the highest average score on the list? Who achieved that average?
A.
| 39.085; | Smith, A |
B.
| 38.895; | Wilson, K |
C.
| 39.115; | Davis, M |
D.
| 39.975; | Davis, M |
Solve the problem.The height of a box is 3 inches. The length is three inches more than the width. Find the width if the volume is 210 cubic inches.
A. 3 in. B. 7 in. C. 10 in. D. 70 in.