A regular region of length x and width y has an area of 493 square meters.Write the width y as a function of x.
?
A. 
B. 
C. 
D. 
E. 
Answer: D
Mathematics
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Find the product.(6x + 4 + 7y)2
A. 36x2 + 48x + 84xy + 56y + 49y2 B. 36x2 + 24x + 16 + 42xy + 28y + 49y2 C. 36x2 + 84xy + 49y2 D. 36x2 + 48x + 16 + 84xy + 56y + 49y2
Mathematics
Given that the point 
lies on the line 
, find k.
?
A. 
B. 
C. ?
D. ?
E. ?
Mathematics
Use the table to find the monthly checking-account service charge for the account. 
DynaPro Golf, 24 checks, average balance $460
A. $14.40 B. $7.40 C. $12.30 D. $16.80
Mathematics
State the dual problem. Use y1, y2, and y3 as the variables. Given: y1 ? 0, y2 ? 0, and y3
Minimizew = 2x1 + 3x2 + x3subject to:x1 + 3x2 + 2x3 ? 41 2x1 + 4x2 + 3x3 ? 57 x1 ? 0, x2 ? 0, x3 ? 0
A.
| Maximize | z = 41y1 + 57y2 |
| subject to: | y1 + 2y2 ? 2 |
2y1 + 3y2 ? 1
B. Maximize z = 57y1 + 41y2
| subject to: | 2y1 + y2 ? 2 |
3y1 + 2y2 ? 1
C. Maximize z = 57y1 + 41y2
| subject to: | 2y1 + y2 ? 2 |
3y1 + 2y2 ? 1
D.
| Maximize | z = 41y1 + 57y2 |
| subject to: | y1 + 2y2 ? 2 |
2y1 + 3y2 ? 1
Mathematics