Simplify the expression. Assume that all variables are positive when they appear.
? 
A. 
B. 
C. 5x4
D. x4
Answer: C
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Use the rational root theorem and the factor theorem to help solve the equation.x3 - x2 - 65x + 225 = 0
A. {-9, 5} B. {-5, 9} C. {-8 , 3} D. {-9, 3} E. {-8, 5}
Round off the approximate number as indicated.21 2 significant digits
A. 21.0 B. 21.1 C. 21 D. 20.9
Provide an appropriate response.A major advantage to using an escrow account is:
A. all of these apply to escrow B. it assures the lending agency that property taxes and insurance will be paid in a timely fashion C. the borrower is not required to include an amount for property taxes and insurance each month with their mortgage payment D. the monthly mortgage payment will be reduced by the tax and insurance payment
State the dual problem. Use y1, y2, y3 and y4 as the variables. Given: y1 ? 0, y2 ? 0, y3 ? 0, and y4
Maximizez = 8x1 + 7x2subject to: 9x1 + 3x2 ? 191 x1 + x2 ? 25 2x1 + 6x2 ? 91 x1 ? 0, x2 ? 0
A.
| Minimize | w = 191y11 + 25y2 + 91y3 |
| subject to: | 9y1 + y2 + 2y3 ? 8 |
B.
| Minimize | w = 191y1 + 25y2 + 91y3 |
| subject to: | 9y1 + y2 + 2y3 ? 8 |
C.
| Minimize | w = 91y1 + 25y2 + 191y3 |
| subject to: | 2y1 + y2 + 9y3 ? 8 |
D.
| Minimize | w = 91y1 + 25y2 + 191y3 |
| subject to: | 2y1 + y2 + 9y3 ? 8 |