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1. |
Solve  by the method of determinants. |
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A. |
(-0.2, 0.4) |
B. |
(-0.2, -0.4) |
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C. |
(-0.4, -0.2) |
D. |
(0.4, 0.2) |
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Hint |
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2. |
Solve  by the method of determinants. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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3. |
Which of the following cannot be true concerning solving a system of equations by determinants? |
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A. |
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B. |
ed - bf = 0 |
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C. |
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D. |
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Hint |
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4. |
Solve  by the method of determinants. Round to the nearest hundredth. |
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A. |
(1.86, 2.20) |
B. |
(2.46, 1.20) |
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C. |
(1.68, 4.40) |
D. |
(-1.86, -2.20) |
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Hint |
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5. |
Two sides of an angle are contained in lines whose equations are  and  Find the coordinates of the vertex of the angle. Round to the nearest hundredth. |
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A. |
(2.76, 3.16) |
B. |
(1.79, 1.06) |
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C. |
(1.78, -1.16) |
D. |
(1.89, 3.26) |
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Hint |
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