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In **Mathematics** / **College** | 2025-08-20

[Answered] Subtract: $\left(-9 b^9-11 n\right)-\left(6 b^9-7 n\right)$ Your answer should be in simplest terms.

In **Mathematics** / **High School** | 2025-08-20

[Answered] $(1 / 3)(9 x+36)=-(4 x+16)

In **Chemistry** / **College** | 2025-08-20

[Answered] Use the proper number of significant figures to express each value. (a) [tex]$97.3+1.00-56.0=$ (b) [tex]$\left(2.8 \times 10^5\right)\left(9.99 \times 10^3\right)=$\times 10^9[/tex] (c) [tex]$\frac{52.0 \times 10^4}{3.75 \times 10^{-2}}+4.37 \times 10^2=$

In **Mathematics** / **College** | 2025-08-20

[Answered] Simplify each of the expressions below by combining like terms. \begin{tabular}{|l|l|l|} \hline 4. $18+21 r-4 r+19 n-3$ & \multicolumn{2}{|c|}{5. $-x+6 y-9 x-2 y-4 y$} \\ \hline 7. $-4 \frac{1}{2} x+15+\frac{7}{2} x-23$ & 8. $4 a-7.5 b+9 b-2.1 a$ & \\ \hline \multicolumn{2}{|c|}{\multirow{2}{*}{\begin{tabular}{l} 10. Simplify an expression for the perimeter of the rectangle. $24.6 x-10.4$ $\square$ $7 x+3.1$ \\ Perimeter: $\qquad$ \end{tabular}}} & 11. Marge s below. \\ \hline & & \\ \hline \end{tabular}

In **Chemistry** / **High School** | 2025-08-20

[Answered] According to the kinetic-molecular theory, the average kinetic energy of gas particles depends on which factor? A. volume B. pressure C. temperature D. number of particles

In **Biology** / **High School** | 2025-08-20

[Answered] Choose a subject: Environmental Science Unlike lakes, the ocean is separated into zones. Please select the best answer from the choices provided. T F

In **Mathematics** / **College** | 2025-08-20

[Answered] Select the correct answer. Which statement is true about this equation? [tex]$y=2^x+4$[/tex] A. It represents both a relation and a function. B. It represents neither a relation nor a function. C. It represents a relation only. D. It represents a function only.

In **History** / **College** | 2025-08-20

[Answered] According to the reading, who is most often recognized for starting the Protestant Reformation in 1517? A. Jan Hus, who led reforms in Prague B. John Wycliffe, who translated the Bible into English C. Peter Waldo, who protested church wealth in France

In **Biology** / **College** | 2025-08-20

[Answered] Need help on this question for ninth grade biology.

In **Mathematics** / **High School** | 2025-08-20

[Answered] Point N is on line segment $\overline{M O}$. Given $M N=x, M O=3 x-6$, and $N O=x+1$, determine the numerical length of $\overline{M O}$.