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Questions in Grade High-school

[Answered] Use a horizontal format to find the sum: $(7 x^2-x)+7 x^3+(-6 x^3+x^2-6)$

[Answered] [tex]\frac{3}{4} x-9=27[/tex]

[Answered] How to use these words in a sentence

[Answered] If [tex]QR=7[/tex], [tex]RS=3x[/tex], and [tex]QS=4x[/tex], what is [tex]QS[/tex]? Simplify your answer and write it as a proper fraction, mixed number, or integer.

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

[Answered] Read the excerpt and provide simple and short notes on this section: In September of 2009, Kong Dejun returned to China from her home in Great Britain. The occasion was a birthday celebration for her ancient ancestor Kong Fuzi, or Confucius, born 2,560 years earlier. Together with some 10,000 other people-descendants, scholars, government officials, and foreign representatives-Kong Dejun attended ceremonies at the Confucian Temple in Qufu, the hometown of China's famous sage. "I was touched to see my ancestor being revered by people from different countries and nations,” she said.³ What made this celebration remarkable was that it took place in a country still ruled by the Communist Party, which had long devoted enormous efforts to discrediting Confucius and his teachings. In the communist outlook, Confucianism was associated with class inequality, patriarchy, feudalism, superstition, and all things old and backward. But the country's ancient teacher and philosopher had apparently outlasted modern communism, for now the Communist Party has claimed Confucius as a national treasure and has established over 300 Confucian Institutes to study his writings. He appears in TV shows and movies, and many anxious parents offer prayers at Confucian temples when their children are taking the national college entrance exams. Buddhism and Daoism (DOW-i'zm) have also experienced something of a revival in China, as thousands of temples, destroyed during the heyday of communism, have been repaired and reopened. Christianity too has grown rapidly since the 1970s.

[Answered] Which of these tables represents a non-linear function? \begin{tabular}{|c|c|} \hline$x$ & $y$ \\ \hline 17 & 20 \\ \hline 18 & 19 \\ \hline 19 & 18 \\ \hline 20 & 17 \\ \hline \end{tabular} \begin{tabular}{|c|c|} \hline$x$ & $y$ \\ \hline 17 & -16 \\ \hline 18 & -17 \\ \hline 19 & -18 \\ \hline 20 & -19 \\ \hline \end{tabular} \begin{tabular}{|c|c|} \hline$x$ & $y$ \\ \hline 17 & 16 \\ \hline 18 & 17 \\ \hline 19 & 19 \\ \hline \end{tabular}

[Answered] Evaluate the expression if [tex]a=7, b=9[/tex], and [tex]c=4[/tex]. [tex]a^2+3 c^3[/tex]

[Answered] What is the value of the expression below when [tex]$x=5$[/tex]? [tex]$4 x-8$[/tex]

[Answered] Simplify each expression. 18. [tex]$16^{\frac{1}{4}}$[/tex] 19. [tex]$125^{\frac{1}{3}}$[/tex] 20. [tex]$243^{\frac{1}{5}}$[/tex] 21. [tex]$8^{\frac{2}{3}}$[/tex] 22. [tex]$64^{\frac{4}{3}}$[/tex] 23. [tex]$25^{\frac{3}{2}}$[/tex]