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Questions in Grade College

[Answered] Find the exact value of the following expression: $\cos ^{-1}\left(-\frac{\sqrt{3}}{2}\right)$

[Answered] Residents of three counties were polled to find the percentage of residents who are Republican or Democrat. | | Democrat | Republican | Total | | :------ | :------- | :--------- | :---- | | County 1 | 4,050 | 2,470 | 6,520 | | County 2 | 3,925 | 6,010 | 9,935 | | County 3 | 2,100 | 5,950 | 8,050 | | Total | 10,075 | 14,430 | 24,505| Find the following relative frequencies to the nearest tenth of a percent. Republican residents of County 1: [ ] % Democratic residents of County 1: [ ] % Total Republican residents: [ ] % Total Democratic residents: [ ] %

[Answered] Solve for $(x) ;|5 x+12|>8$. Graph and interval:

[Answered] Use an Ilagram to work out the solution to these simultaneous equations: [tex] \begin{array}{l} y=-2 x+4 \ y=\frac{1}{2} x+1 \end{array} [/tex] Watch video

[Answered] Which of the following options best describes what a personal narrative is? A. An informational text about a historical event B. A poem about nature C. A story about someone else's life D. A true story about the writer's own experience

[Answered] Add. Write your answer in simplest form. $8 \sqrt{63}+10 \sqrt{7}$

[Answered] In The Wealth of Nations, Smith writes about an "invisible hand." Which of the following best describes the "invisible hand"? A. a guide that ensures that people produce the things that society needs B. the thefts committed by workers in factories C. the way in which government duties secretly increase the price of imported goods D. the process by which a single worker completes all stages in the manufacture of a product

[Answered] Let f: \mathbb{R} \to \mathbb{R} be a continuous function such that for every rational number q, f(x+q) = f(x) for all x \in \mathbb{R}. Prove that f is a constant function?

[Answered] What is $x^2+21 x+110$ in factored form?

[Answered] Select the rational numbers. Select all that apply. -1.42372 0.5 \overline{8} \sqrt{64} 0 2.23607 \ldots 0.25 0.58558555855558 \ldots 0.12345 \ldots