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Questions in Grade College

[Terjawab] 13. Find the domain of [tex]f(x)=\sqrt{4-x^2}[/tex] A. [-2,2] B. (-2,2) C. (-2,2) D. [-2,2]. 14. Find the domain of [tex]f(x)=\frac{3}{5^2-9}[/tex] A. [tex]R \\{9\}[/tex] B. [tex]R \\(-3,3)[/tex] C. [tex]R \\{3\}[/tex] D. [tex]R \\{-9\}[/tex] 15. The domain of [tex]f(x)=x^2 \ln x[/tex] is A. (-x, x) B. (1, x) C. (0,1) D. (0, x). 16. Find the domain of [tex]\sqrt{4-7}[/tex] A. (0, x) B. 7 C. (-x, 7] D. [7, x). 17. Let [tex]f: R \rightarrow R[/tex] be defined by [tex]f(x)=\frac{3}{x^2-1}[/tex]. Find the domain of f. A. [tex]R \\(4)[/tex] B. [tex]R \\{2\}[/tex] C. [tex]R \\{-4\}[/tex] D. [tex]R \{-2.2\}[/tex]. 18. Find the inverse [tex]g^{-1}(x)[/tex] of [tex]g(x)=\sqrt{x-3}[/tex] A. [tex](x-3)^2[/tex] B. [tex]x^2+3[/tex] C. [tex]x^2-3[/tex] D. [tex]\frac{1}{2}-3[/tex] 19. The inverse of [tex]f(x)=2 x-1[/tex] is A. x-1 B. [tex]\frac{x+1}{2}[/tex] C. [tex]\frac{1}{x+2}[/tex] D. [tex]x^2[/tex]. 20. Find the inverse of [tex]f(x)=x^3-2[/tex]. A. [tex](x+2)[/tex] B. [tex](x-2)[/tex] C. [tex](x-2)[/tex] D. [tex](x+2)[/tex]

[Terjawab] The least common multiple of 3, 4, 6, and 8 is A) 96. B) 24. C) 72. D) 8.

[Terjawab] Consider the function [tex]f(x)=x^2+12 x+11[/tex]. [tex]x[/tex]-intercepts: [tex] \begin{array}{l} 0 = x ^2+ 1 2 x+11 \\ 0=(x+1)(x+11) \end{array} [/tex] [tex]y[/tex]-intercept: [tex]f(0)=(0)^2+12(0)+11[/tex] What are the intercepts of the function? The [tex]x[/tex]-intercepts are $\square$ The [tex]y[/tex]-intercept is $\square$

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

[Terjawab] If the set $U=\{$ all positive integers $\}$ and set $A=\{x \mid x \in U$ and $x$ is an odd positive integer $\}$, which describes the complement of set $A, A^c$ ? A. $A^c=\{x \mid x \in U$ and is a negative integer $\}$ B. $A^c=\{x \mid x \in U$ and is zero $\}$ C. $A^c=\{x \mid x \in U$ and is not an integer $\}$ D. $A^c=\{x \mid x \in U$ and is an even positive integer $\}$

[Terjawab] Factor $8 r^3-64 r^2+r-8$

[Terjawab] The purpose of paraphrasing Shakespeare's text is to: A. change the setting to modern day B. make the language easier to understand. C. correct possible mistakes in the original plays. D. outline the relations among the characters.

[Terjawab] If the scale factor between two circles is [tex]$\frac{2 x}{5 y}$[/tex], what is the ratio of their areas? [tex]$\frac{2 x}{5 y}$[/tex] [tex]$\frac{2 x^2}{5 y^2}$[/tex] [tex]$\frac{4 x^2 \pi}{25 y^2}$[/tex] [tex]$\frac{4 x^2}{25 y^2}$[/tex]

[Terjawab] "Samâi Shad Araban" is an example of a saz semâisi, or the concluding piece from a fasil. A. True B. False

[Terjawab] Solve $y=20$ where $y$ is a real number. Simplify your answer as much as possible. (If there is more than one solution, separate them with commas.) $y=\square$