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Questions in Grade High-school

[Done] Mang Mario made a rectangular garden plot for his plants. Its measures are 11 meters in length and 16 meters in width. What is the area of the rectangular garden plot?

[Done] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Done] What is the mass of $CO_2$ in atomic mass units? A. 22 amu B. 12 amu C. 28 amu D. 44 amu

[Done] \begin{array}{l}-5 x+1 y=-3 \\ 3 x-8 y=24\end{array}

[Done] Which equation demonstrates that nuclear fusion forms elements that are heavier than helium? ${ }_1^2 H +{ }_1^3 H \longrightarrow{ }_2^4 He +{ }_0^1 n$ ${ }_8^{16} O +{ }_2^4 He \longrightarrow{ }_{10}^{20} Ne$ ${ }_{82}^{235} U+{ }_0^1 n \longrightarrow{ }_{53}^{131} \mid+{ }_{39}^{89} Y+16_0^1 n$ ${ }_{92}^{235} U +{ }_0^1 n \longrightarrow{ }_{42}^{95} Mo +{ }_{57}^{139} La +2{ }_0^1 n +7{ }_{-1}^0 e$

[Done] Which of the following materials has the highest specific weight? A. FRP Composites B. Concrete C. Steel D. Wood

[Done] Jada solved the equation $-\frac{4}{9}=\frac{x}{108}$ for $x$ using the steps below. What was Jada's error? $\begin{aligned} -\frac{4}{9} & =\frac{x}{108} \\ -\frac{4}{9}\left(-\frac{9}{4}\right) & =\frac{x}{108}\left(-\frac{9}{4}\right) \\ x & =-\frac{1}{48} \end{aligned}$ A. Jada should have multiplied both sides of the equation by 108. B. Jada should have multiplied both sides of the equation by $-\frac{4}{9}$. C. The product of $-\frac{9}{4}$ and $\frac{1}{108}$ is not equal to $-\frac{1}{48}$.

[Done] A group of 2 adults and 4 children spent $38 on tickets to a museum. A group of 3 adults and 3 children spent $40.50 on tickets to the museum. Based on this information, how much is an adult ticket, and how much is a child ticket? [tex]2a + 4c = 38.00[/tex] [tex]3a + 3c = 40.50[/tex] What values of [tex]a[/tex] and [tex]c[/tex] represent the solution to the system? [tex]a = 8, c = 5.5[/tex] What does the solution (8, 5.5) mean in the context of this problem? A. The cost of 8 child tickets is $5.50. B. The cost of 8 adult tickets is $5.50. C. A child ticket costs $8, and an adult ticket costs $5.50. D. An adult ticket costs $8, and a child ticket costs $5.50.

[Done] Rewrite the following sentences changing the nouns given in bold in their singular form. Make other changes, if necessary. Example: The birds made nests in the trees. The bird made a nest in the tree. 1. Cars need batteries. 2. The doctor pulled out the aching teeth. 3. The children flew kites. 4. Trees shed their leaves.

[Done] From the three categories (adapted, compiled, or original score), the score for L'assassinat du Duc de Guise would be best categorized as an adapted score. True or False?