Solve the equation.(x + 3)2 - 9(x + 3) + 20 = 0
A. {7, 8}
B. {-2, -1}
C. {1, 2}
D. {-8, -7}
Answer: C
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Use Cramer's rule to solve the system.6x + 3y = 64x + y = -2
A. {(2, -6)} B. {(6, -2)} C. {(-6, -2)} D. {(-2, 6)}
Find the unknown length in the right triangle. Round to the nearest thousandth, if necessary.
A. 34 cm B. 676 cm C. 5.831 cm D. 26 cm
Solve.An object is at rest at t = 0 seconds and then begins accelerating at a constant 16 feet per second per second. The distance the object travels in the first t seconds is given by the polynomial 8t2. Find the distance the object travels in the first 10 seconds.
A. 80 feet B. 160 feet C. 800 feet D. 100 feet
State the dual problem. Use y1, y2, y3 and y4 as the variables. Given: y1 ? 0, y2 ? 0, y3 ? 0, and y4
Maximizez = x1 + 2x2 + 3x3subject to:6x1 + 3x2 + x3 ? 30 4x1 + 7x2 + 3x3 ? 45 x1 ? 0, x2 ? 0, x3 ? 0
A. Minimize w = 45y1 + 30y2
| subject to: | 4y1 + 6y2 ? 1 |
3y1 + y2 ? 3
B. Minimize w = 45y1 + 30y2
| subject to: | 4y1 + 6y2 ? 1 |
3y1 + y2 ? 3
C.
| Minimize | w = 30y1 + 45y2 |
| subject to: | 6y1 + 4y2 ? 1 |
y1 + 3y2 ? 3
D.
| Minimize | w = 30y1 + 45y2 |
| subject to: | 6y1 + 4y2 ? 1 |
y1 + 3y2 ? 3