TEKS.MATH.9-12.II.C

What is the first step to solving THIS equation by completing the square?
a² + 10a + 21 = 0

• Set the equation equal to zero
• Divide 10 by 2 and add the result to both sides
• Add a² and 10a together
• Subtract the 21

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TEKS.MATH.9-12.II.C

Solve the following equation for x.  Round your solution to two decimal places.
ln3x + ln2x = 3

• x = 12.91
• x = 4.02
• x = 3.35
• x = 1.83

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TEKS.MATH.9-12.II.C

Write the following in interval notation
x > 6 and x ≤ 10

• (-∞, 6) and (10, ∞)
• [6, 10)
• (-∞, 6] and [10, ∞)
• (6, 10]

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TEKS.MATH.9-12.II.C

Find the value of KL. If KL = 3x + 2 and LM = 5x - 10.

• KL = 20
• KL = 16
• KL = 10
• KL = 9

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TEKS.MATH.9-12.II.C

What is the missing index?(2⁶)^x = 2¹⁸

• 12
• 3
• 10
• 4

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TEKS.MATH.9-12.II.C

Solve sinθ = ½ on θ∈[0, 2π)

• θ = π / 6,  7π / 6
• θ = π / 6,  5π / 6
• θ = 5π / 6,  7π / 6
• θ = 7π / 6,  11π / 6

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TEKS.MATH.9-12.II.C

Solve for a:
5^{a + 2} = 1/125

• -1
• -6/7
• -5
• 4

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TEKS.MATH.9-12.II.C

Determine the values of

a, b, and c for

the quadratic equation:

4x² – 8x = 3

• a = 4, b = -8, c = 3

• a = 4, b = 8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = -3

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TEKS.MATH.9-12.II.C

f(x) = (x+2)(x-3)²(x-4)

Which choice best describes the zeros?

• -2, 3 (multiplicity 2), 4

• -2 (multiplicity 2), 3, 4

• 2, -3 (multiplicity 2), -4

• 2 (multiplicity 2), -3, -4

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TEKS.MATH.9-12.II.C

log ₅ (10x − 7) + log ₅ 3 = -1

• x = -1/10

• x = 53/75

• x = 21/50

• x = -5

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TEKS.MATH.9-12.II.C