Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. -14
B. -5
C. 0
D. 1
Answer: D
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Complete the ordered pairs. Then graph the equation.2x - y = 2(0, ), ( , 0), (2, )
A. (0, -2), (1, 0), (2, 2)
B. (0, 2), (-1, 0), (2, 6)
C. (0, -2), (-4, 0), (2, -1)
D. (0, -2), (-1, 0), (2, -6)
Provide an appropriate response.Using a graphing calculator, choose the inequality that corresponds to the graph:
A. y ? x2 - 2x B. y ? x2 - 2x C. y > x2 - 2x D. y < x2 - 2x
Solve the problem.A loaf of bread is removed from an oven at 
and cooled in a room whose temperature is 
. If the bread cools to 
in 20 minutes, how much longer will it take the bread to cool to 
A. 18 min B. 6 min C. 26 min D. 7 min
State the dual problem. Use y1, y2, y3 and y4 as the variables. Given: y1 ? 0, y2 ? 0, y3 ? 0, and y4
Minimizew = 2x1 + 3x2 + x3subject to:x1 + 3x2 + 2x3 ? 35 2x1 + 4x2 + 3x3 ? 50 x1 ? 0, x2 ? 0, x3 ? 0
A. Maximize z = 50y1 + 35y2
| subject to: | 2y1 + y2 ? 2 |
3y1 + 2y2 ? 1
B.
| Maximize | z = 35y1 + 50y2 |
| subject to: | y1 + 2y2 ? 2 |
2y1 + 3y2 ? 1
C. Maximize z = 50y1 + 35y2
| subject to: | 2y1 + y2 ? 2 |
3y1 + 2y2 ? 1
D.
| Maximize | z = 35y1 + 50y2 |
| subject to: | y1 + 2y2 ? 2 |
2y1 + 3y2 ? 1