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United Arab Emirates
5. At what point does the graph of \( 4 x-6 y=-1 \) intersect the \( x \)-axis? (A) 4 (B) 6 (C) \( \frac{2}{3} \) (D) \( \frac{1}{6} \) (E) \( -\frac{1}{4} \) 6. If \( 4 x^{3}=-64 \), then \( x= \) (A) -1 (B) 1 (C) \( -2 \sqrt[3]{2} \) (D) \( 2 \sqrt[3]{2} \) (E) 4 7. If the fourth root of the square of a number is 2 , then what is the number? (A) 2 (B) 4 (C) 8 (D) 16 (E) 32 8. If a line is perpendicular to the line \( 2 x+6 y=18 \), what is its slope? (A) \( -\frac{1}{3} \) (B) \( \frac{1}{3} \) (C) -3
Algebra Jan 22, 2025
5. At what point does the graph of \( 4 x-6 y=-1 \) intersect the \( x \)-axis? (A) 4 (B) 6 (C) \( \frac{2}{3} \) (D) \( \frac{1}{6} \) (E) \( -\frac{1}{4} \) 6. If \( 4 x^{3}=-64 \), then \( x= \) (A) -1 (B) 1 (C) \( -2 \sqrt[3]{2} \) (D) \( 2 \sqrt[3]{2} \) (E) 4
Algebra Jan 22, 2025
20. The enthalpy change under standard conditions for which of the reactions below would be equal to the \( \Delta H_{\mathrm{f}}^{\circ} \) of \( \mathrm{NaOH}(s) \) ? (A) \( \mathrm{Na}(s)+\mathrm{H}_{2} \mathrm{O}(l) \rightarrow \mathrm{NaOH}(s)+1 / 2 \mathrm{H}_{2}(g) \) (B) \( \mathrm{Na}(s)+1 / 2 \mathrm{O}_{2}(g)+1 / 2 \mathrm{H}_{2}(g) \rightarrow \mathrm{NaOH}(s) \) (C) \( \mathrm{Na}(s)+1 / 2 \mathrm{H}_{2} \mathrm{O}_{2}(l) \rightarrow \mathrm{NaOH}(s) \) (D) \( \mathrm{Na}^{+}(a q)+\mathrm{OH}^{-}(a q) \rightarrow \mathrm{NaOH}(s) \)
Chemistry Jan 22, 2025
Practice Your skills Solve for \( n \) in each proportion. 1 \( \frac{3}{n}=\frac{2}{4} \) \( 2 \quad \frac{5}{7}=\frac{n}{14} \) \( 3 \quad \frac{n}{5}=\frac{16}{20} \) \( 4 \quad \frac{14}{8}=\frac{n}{20} \) \( 5 \quad \frac{3}{n}=\frac{27}{108} \) (6) \( 18: 12=n: 6 \) \( 7 \quad 30: 78=n: 13 \) \( 8 \quad n: 8=5: 10 \) 9. \( \quad 15: 2=n: 8 \) \( 10 \quad 40: 72=n: 9 \)
Pre Algebra Jan 22, 2025
Solve for \( y \). \[ 4+\frac{1}{y-2}=-\frac{7}{y-5} \] If there is more than one solution, separate them with commas. ff there is no solution, click on "No solution". \( y=\square \)
Algebra Jan 21, 2025
Solve for \( x \) : \[ \frac{3}{(x+2)(x-1)}=-3+\frac{1}{x-1} \] If there is more than one solution, separate them with commas. If there is no solution, click on "No solution". \( x=\frac{-1+\sqrt{34}}{3}, \frac{-1-\sqrt{34}}{3} \)
Algebra Jan 21, 2025
Solve for \( w \). \[ -\frac{1}{w+2}=-4+\frac{3}{w+3} \] If there is more than one solution, separate them with commas. If there is no solution, click on "No solution". \( w=-\frac{3}{2} \), \( [\square] \)
Algebra Jan 21, 2025
2. \( \tan ^{2} \theta\left(\cot ^{2} \theta-\cos ^{2} \theta\right)= \)
Trigonometry Jan 21, 2025
GuidedPractice 1. Verify that \( \cot ^{2} \theta-\cos ^{2} \theta=\cot ^{2} \theta \cos ^{2} \theta \) is an identity
Trigonometry Jan 21, 2025
25. Find the value of the following equation for \( x=1, y=1 \) as a solution. \( 3 x+a y=6 \) [2]
Algebra Jan 21, 2025
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