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Questions in Grade High-school

[Done] Which of the following statements are true about the given rational equation? Check all of the boxes that apply. [tex]\frac{4}{x+6}+\frac{1}{x^2}=\frac{x+10}{x^3+6 x^2}[/tex] A. [tex]$x=1$[/tex] is a solution. B. [tex]$x=0$[/tex] is a solution. C. [tex]$x=-1$[/tex] is a solution. D. [tex]$x=-6$[/tex] is a solution.

[Done] Solve each of the following equations: 3. [tex]$4(8 x+4)-20=-20$[/tex] 4.

[Done] Select the best answer for the question. All of the following are major components of soil except: A. minerals B. water C. organic matter D. carbonic acid

[Done] If [tex]f(x)=3 x^2+1[/tex] and [tex]g(x)=1-x[/tex], what is the value of [tex](f-g)(2)[/tex]?

[Done] What is the value of $r$ of the geometric series? [tex] \sum_{n=1}^3 1.3(0.8)^{n-1} [/tex]

[Done] \frac{k}{k-2}-\frac{8}{k^2-4}

[Done] Multiply. Write your answer in $-6 \cdot-\frac{1}{5} \cdot \frac{1}{4}=$ $\square$

[Done] Solve for $x$. $-4(2 x+8)=24$

[Done] Solve the equation for x. [tex]\frac{2}{9} x-\frac{1}{3}=1[/tex]

[Done] How is $123,000,000,000$ expressed in scientific notation? A. $1.23 \times 10^{-11}$ B. $12.3 \times 10^{-11}$ C. $1.23 \times 10^{11}$ D. $12.3 \times 10^{11}$