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Questions in Grade College

[Jawaban] Which polynomial represents the sum below? $\begin{array}{r} 3 x^2+7 x+3 \\ +\quad 5 x^2+12 x \\ \hline \end{array}$ A. $15 x^2+19 x+3$ B. $8 x^2+84 x+3$ C. $15 x^2+84 x+3$ D. $8 x^2+19 x+3$

[Jawaban] What is the product of the polynomials below? $\left(5 x^2+5 x+7\right)(8 x+6)$ A. $40 x^3+60 x^2+86 x+42$ B. $40 x^3+10 x^2+86 x-42$ C. $40 x^3+70 x^2+86 x+42$ D. $48 x^3+70 x^2+86 x+42$

[Jawaban] Simplify the expressions. [tex] \begin{array}{l} i^{37}=\\ i^{52}= \end{array} [/tex]

[Jawaban] Manganese dioxide [tex]$\left( MnO _2(s), \Delta H_{ f }=-520.0 kJ\right)$[/tex] reacts with aluminum to form aluminum oxide [tex]$\left( Al _2 O _3(s), \Delta H_{ f }=-\right.$[/tex] [tex]$1699.8 kJ / mol$[/tex]) and manganese according to the equation below. [tex]$3 MnO_2(s)+4 Ar(s) \rightarrow 2 Al_2 O_3(g)+3 Mn(s)$[/tex] What is the enthalpy of the reaction? Use [tex]$\Delta H_{r \times n}=\sum\left(\Delta H_{\text {teproducts }}\right)-\sum\left(\Delta H_{\text {tereatants }}\right)$[/tex]

[Jawaban] 13. Find the domain of [tex]f(x)=\sqrt{4-x^2}[/tex]. A. [tex](-2,2)[/tex] B. [tex](-2,2)[/tex] C. [tex](-2,2)[/tex] D. [tex](-2,2)[/tex]. 14. Find the domain of [tex]f(x)=\frac{5}{x^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. [tex](-\infty, x)[/tex] B. [tex](1, \infty)[/tex] C. [tex](0,1)[/tex] D. [tex](0, x)[/tex]. 16. Find the domain of [tex]\sqrt{4-7 t}[/tex]. A. [tex][0, \infty)[/tex] B. [tex]\frac{7}{1}[/tex] C. [tex](-\infty, \frac{7}{1}][/tex] D. [tex][\frac{7}{1}, \infty)[/tex]. 17. Let [tex]f: R \rightarrow R[/tex] be defined by [tex]f(x)=\frac{5}{E^2-1}[/tex]. Find the domain of [tex]f[/tex]. 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]

[Jawaban] Which instruction about newly prescribed levothyroxine sodium would the nurse give to a patient who has hypothyroidism? A. This treatment usually lasts about one year. B. A fixed dose is maintained during treatment. C. You must take the drug exactly as prescribed. D. Assessment for fever occurs when therapy begins.

[Jawaban] A specific territory or zone that has laws and regulations different from the rest of the country is called a(n) A. work zone. B. border zone. C. tax-free zone. D. economic zone.

[Jawaban] Which of the following is MOST likely a low-risk body position? A. Sitting with your back to the person B. Standing by the person's side C. Kneeling at the person's feet D. Standing out of the person's reach

[Jawaban] The rule $r_{y=,}{ }^{\circ} T_{4,0}(x, y$ is applied to trapezoid ABCD to produce the final image $A^{\prime \prime} B^{\prime \prime} C^{\prime \prime} D^{\prime \prime}$. Which ordered pairs name the coordinates of vertices of the pre-image, trapezoid ABCD? Select two options. (-1,0) (-1,-5) (1,1) (7,0) (7, -5)

[Jawaban] Read the following description of a relationship: Tessa is determined to become a concert pianist. Every week she practices more hours than her piano teacher assigns. Let [tex]$a$[/tex] represent the number of hours of practice assigned and [tex]$c$[/tex] represent the number of hours of practice completed. Complete the table using the equation [tex]$c=a+8$[/tex]. a c 1 $\square$ 2 10 3 11 4