Find the sum of the arithmetic series:
2 + 5 + 8 + ... + 20
What is the slope of the line represented by the equation y = 2x + 5?
Solve for x: |2x - 5| = 7
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x = 6
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x = -1
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x = -6, x = 1
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x = 6, x = -1
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x = -1, x = 6
Which of the following is the complex conjugate of 3 - 4i?
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3 + -4i
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3 + 4i
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-3 - 4i
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3 - 4i
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-3 + 4i
Factor the quadratic expression:
x² - 4x - 12
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(x - 6)(x - 2)
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(x + 6)(x - 2)
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(x - 6)(x + 2)
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(x + 6)(x + 2)
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(x + -6)(x - 2)
Solve the system of equations:
2x + y = 5
x - y = 1
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y = 2, x = 1
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x - 1, y = 3
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y = 3, x = 2
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x = 2, y = 1
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x = 1, y = 2