Do you think that mandatory standards should be developed for the design of graphs of financial data that are included in annual reports and other periodic communications to investors? Why, or why not?

An experimenter reports that a certain strain of bacteria grows at a rate proportional to the square of the size of the population. Set up a differential equation that describes the growth of the population. Sketch a solution.

Sodium carbonate $\left(\mathrm{Na}_2 \mathrm{CO}_3\right)$ placed in water forms a basic solution. Carbonic acid $\left(\mathrm{H}_2 \mathrm{CO}_3\right)$ in water forms an acidic solution. Use equations to explain these results:

State the claim mathematically. Write the null and alternative hypotheses. Identify which is the claim.

A research organization reports that 33% of the residents in Ann Arbor, Michigan are college students.

Explain your answer. Determine whether the set of integers under the operation of multiplication forms a group.

A survey asking students whether or not they snacked most days reports a margin of error of $5 \%$. About how many students do you think were surveyed?

Hydrolysis of the compound $B_5H_9$ forms boric acid , $H_3BO_3.$ Fusion of boric acid with sodium oxide forms a borate salt, $Na_2B_4O_7$. Without writing complete equations, find the mass (in grams) of $B_5H_9$ requ ired to form 151 g of the borate salt by this reaction sequence.

Select the member of group 4A that best fits each description: forms chains to the greatest extent.

The aldonic acid of D-glucose forms a five-membered-ring lactone. Draw its structure.

How does a zygote form? What happens to the zygote about four days after it forms?

Why do practical database designs typically aim for BCNF and not aim for higher normal forms?

Consider the transition between two forms of solid tin, $\operatorname{Sn}(s$, gray $) \rightarrow \operatorname{Sn}(s$, white $)$. The two phases are in equilibrium at $1 \mathrm{bar}$ and $18^{\circ} \mathrm{C}$. The densities for gray and white tin are $5750$ and $7280 \mathrm{~kg} \mathrm{~m}^{-3}$, respectively, and the molar entropies for gray and white tin are $44.14$ and $51.18 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$, respectively. Calculate the temperature at which the two phases are in equilibrium at $350 . \mathrm{bar}$.

Which of the following items should be disclosed in interim reports?

a. Total assets
b. Total liabilities
c. Cash flow from operating activities
d. Gross revenues

Find equivalent expanded forms for these expressions. Then check your reasoning. a. $(x+n)^{2}$ b. $(m x+n)^{2}$ c. $(x+n)(x-n)$ d. $(m x+n)(m x-n)$