Express the sums in sigma notation. The form of your answer will depend on your choice for the starting index. $1+2+3+4+5+6$

Circle the letter of the sentence in which the word in bold-faced type is used incorrectly.

a. In a monopoly, power is held on the basis of majority rule.

b. One student seems to monopolize every class discussion.

c. During the eighteenth century the British held an absolute monopoly on trade with the American colonies.

d. By gaining a monopoly in the steel industry, a few financiers virtually controlled the nation's economy.

What is the rationale for using drugs such as B2 agonists, acetylcholine antagonists, leukotriene inhibitors, corticosteroids, and mast cell stabilizers to manage obstructive pulmonary disorders?

The resident population of Georgia (in thousands) was 9810 in 2011 and 9992 in 2013. Use the Midpoint Formula to estimate the population in 2012.

Graph each function. Based on the graph, state the domain and the range and find any intercepts.

$$f(x)=\left\{\begin{array}{ll}{\ln x} & {\text { if } 0<x<1} \\ {-\ln x} & {\text { if } x \geq 1}\end{array}\right.$$

Why are detergents better than soaps for laundering?

Calculate whether or not a precipitate will form in the following mixed solutions:

(a) $100 \mathrm{~mL}$ of $0.010~M\mathrm{~Na}_2 \mathrm{SO}_4$ and $100 \mathrm{~mL}$ of $0.001~M\mathrm{~Pb}\left(\mathrm{NO}_3\right)_2$
(b) $50.0 \mathrm{~mL}$ of $1.0 \times 10^{-4}~M\mathrm{~AgNO}_3$ and $100 . \mathrm{mL}$ of $1.0 \times 10^{-4}~M\mathrm{~NaCl}$
(c) $1.0 \mathrm{~g} \mathrm{~Ca}\left(\mathrm{NO}_3\right)_2$ in $150 \mathrm{~mL} \mathrm{~H}_2 \mathrm{O}$ and $250 \mathrm{~mL}$ of $0.01~M\mathrm{~NaOH}$\

$$K_{\text {sp }} \mathrm{PbSO}_4=1.3 \times 10^{-8}$$

$$K_{\mathrm{sp}} \mathrm{AgCl}=1.7 \times 10^{-10}$$

$$K_{\mathrm{sp}} \mathrm{Ca}(\mathrm{OH})_2=1.3 \times 10^{-6}$$

Charlie and Aisha built a small rocket and launched it from their backyard. The rocket fell to the ground 10 s after it launched. The height h, in feet of the rocket relative to the ground at time t seconds can be modeled by the function shown.

$$h(t)=at^2+bt+c$$

Construct Arguments Charlie believes that the function

$$h(t) = -16t^2 + 160t$$

models the height of the rocket with respect to time. Do you agree? Explain your reasoning and indicate the domain of function.

Graph each function. Based on the graph, state the domain and the range and find any intercepts.

$$f(x)=\left\{\begin{array}{ll}{-\ln x} & {\text { if } 0<x<1} \\ {\ln x} & {\text { if } x \geq 1}\end{array}\right.$$

Given matrices $A, B$, and $C$, multiply, if possible.

$$A=\left[\begin{array}{ll} 1 & 1 \\ 2 & 3 \end{array}\right] \quad B=\left[\begin{array}{rr} 3 & 2 \\ -1 & 1 \end{array}\right] \quad C=\left[\begin{array}{lll} 0 & 2 & 0 \\ 3 & 1 & 4 \end{array}\right]$$

CA

Given the following thermochemical equations,

$$\begin{array}{cc} \mathrm{CaO}(s)+\mathrm{Cl}_2(g) \longrightarrow \mathrm{CaOCl}_2(s) & \Delta H^{\circ}=-110.9 \mathrm{~kJ} \\ \mathrm{H}_2 \mathrm{O}(l)+\mathrm{CaOCl}_2(s)+2 \mathrm{NaBr}(s) \longrightarrow & 2 \mathrm{NaCl}(s)+\mathrm{Ca}(\mathrm{OH})_2(s)+\mathrm{Br}_2(l) \\ \Delta H^{\circ}=-60.2 \mathrm{~kJ} \\ \mathrm{Ca}(\mathrm{OH})_2(s) \longrightarrow H^{\circ}=+65.1 \mathrm{~kJ} \end{array}$$

calculate the value of $\Delta H^{\circ}$ (in kilojoules) for the reaction

$$\frac{1}{2} \mathrm{Cl}_2(g)+\mathrm{NaBr}(s) \longrightarrow \mathrm{NaCl}(s)+\frac{1}{2} \mathrm{Br}_2(l)$$

The chemical factors that determine traits are called

a. chromosomes.

b. genes.

c. traits.

d. characters.

Graph each function. Based on the graph, state the domain and the range and find any intercepts.

$$f(x)=\left\{\begin{array}{ll}{\ln (-x)} & {\text { if } x \leq-1} \\ {-\ln (-x)} & {\text { if }-1<x<0}\end{array}\right.$$

Graph the set of all real numbers less than or equal to 2 .