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Questions and Answers
What is the result of the expression $(5x^3 - 2x)^2$?
What is the result of the expression $(5x^3 - 2x)^2$?
- $25x^6 - 20x^4 + 4x^2$ (correct)
- $25x^6 - 20x^4 + 4$
- $25x^6 - 20x^4 - 4x$
- $25x^6 - 20x^4 + 4x^3
In a right-angled triangle with hypotenuse 13 cm and one side 12 cm, what is the sine of the angle opposite to the 12 cm side?
In a right-angled triangle with hypotenuse 13 cm and one side 12 cm, what is the sine of the angle opposite to the 12 cm side?
- 5/13
- 12/5
- 4/5
- 12/13 (correct)
Find the smallest positive integer that satisfies the inequality $2x + 1 \leqslant 3(4 - x)$.
Find the smallest positive integer that satisfies the inequality $2x + 1 \leqslant 3(4 - x)$.
- 2
- 1
- 4 (correct)
- 3
Which of the following is the equation of a parabola with a vertex at (3, -2) and a directrix $x = 2$?
Which of the following is the equation of a parabola with a vertex at (3, -2) and a directrix $x = 2$?
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What is the median of the data set: 3, 5, 9, 11, 13, 17, 27?
What is the median of the data set: 3, 5, 9, 11, 13, 17, 27?
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Which of the following is a correct simplification of $\sqrt[3]{64x^6}$?
Which of the following is a correct simplification of $\sqrt[3]{64x^6}$?
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