STAAR 2019 Final Round

Which expression is equivalent to (12k²r⁷)² for all positive values of m and p?

• 12k²r⁷

• 24k⁴r¹⁴

• 144k⁴r¹⁴

• 12k²r¹⁴

What value of n makes the equation 3(0.5n - 2) = 3n - 0.25(15 - 4n) true?

• -0.9

• -9

• 0.9

• 9

In a sequence of numbers, a₃ = 0 , a₄ = 5 , a₅ = 10 , a₆ = 15 , and a₇ = 20. Based on this information, which equation can be used to find the nth term in the sequence, a_n?

• a_n = -5n + 15

• a_n = -15n + 5

• a_n = 5n - 15

• a_n = 15n - 5

Which expression is equivalent to the expression x² - 17x + 60?

• (x - 20) (x + 3)

• (x - 5) (x -12)

• (x - 20) (x - 3)

• (x + 5 )(x - 12)

Given f(x) = ¹/₃ (5 - x)² , what is the value of f(14)?

• 27

• 14

• -3

• 81

What are the solutions to (x + 3)² = 64 ?

• -61 and 67

• -5 and 11

• -67 and 61

• -11 and 5

Which function is equivalent to the expression f(x) = -4(x +7)² - 6 ?

• f(x) = -4x² - 56x - 202

• f(x) = -4x² + 14x + 43

• f(x) = -4x² - 56x - 172

• f(x) = -4x² + 190

Which expression is equivalent to the expression above for all values of q where the expressions is defined?

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• 
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What is the solution set for the inequality 4x + 10 ≥ -5x + 55?

• x ≥ 5

• x ≥ 45

• x ≤ -5

• x ≤ -45

Which expression is a factor of 21x² + 13x - 20?

• 3x - 4

• 7x +5

• 7x + 4

• 3x + 4