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Questions in Grade College

[Terjawab] Find the slope of the line passing through the points $(-3,6)$ and $(5,6)$. slope: $\square$

[Terjawab] If [tex]i=\sqrt{-1}[/tex], then [tex]i^2=[/tex] ?

[Terjawab] What is a major criticism of authoritarianism? A. It protects civil rights B. It limits personal freedoms C. It encourages public participation D. It allows multiple viewpoints

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

[Terjawab] Find the product. $-8 x^5 y^2 \cdot 6 x^2 y$

[Terjawab] $f(x)=x$ $g(x)=1$ What is the domain of $\left(\frac{g}{f}\right)(x) ?$ A. $x \neq 0$ B. $x \neq-1$ C. All real numbers

[Terjawab] If [tex]f(x)=x+2[/tex] and [tex]g(x)=x^2-3[/tex], find: i) [tex]f(g(x))[/tex] ii) [tex]g(f(x))[/tex]

[Terjawab] The third term of a linear sequence is 16 and its fifth term is 34. Find the second term.

[Terjawab] Is HFC-134a an unacceptable refrigerant starting with model year (MY 2021)?

[Terjawab] Consider the intermediate chemical reactions: [tex] \begin{array}{ll} Ca(s)+CO_2(g)+\frac{1}{2} O_2(g) \rightarrow CaCO_3(s) & \Delta H_1=-812.8 kJ \\ 2 Ca(s)+O_2(g) \rightarrow 2 CaO(s) & \Delta H_2=-1.269 .8 kJ \end{array} [/tex] The final overall chemical equation is [tex]$CaO ( s )+ CO _2(g) \rightarrow CaCO _3(s)$[/tex]. When the enthalpy of this overall chemical equation is calculated, the enthalpy of the second intermediate equation A. is halved and has its sign changed. B. is halved. C. has its sign changed. D. is unchanged.