Of the volunteers donating blood in a clinic, 80% have the Rhesus (Rh) factor present in their blood. What is the smallest number of volunteers who must be selected if we want to be at least 90% certain that we obtain at least five donors with the Rh factor?

Tell whether a parallelogram with the given vertices is a rectangle, rhombus, or square. Give all the names that apply. $(-3,1),(-1,3),(1,1)$, and $(-1,-1)$

We have provided a null hypothesis and alternative hypothesis and a sample from the population under consideration. In each case, use the Wilcoxon signed-rank test to perform the required hypothesis test at the 10% significance level. $H_{0}: \mu=5, H_{\mathrm{a}}: \mu>5$

$$\begin{array}{llllllll} \hline 12 & 7 & 11 & 9 & 3 & 2 & 8 & 6 \\ \hline \end{array}$$

The following pseudocode describes how to obtain the name of a day, given the day number (0= Sunday, 1=Monday, and so on. ) Define a string called names containing "SunMonTueWedThufrisat".Compute the starting position as 3x the day number.Extract the substring of names at the starting position with length 3.Check this pseudocode, using the day number 4 . Draw a diagram of the string that is being computed.

Translate to an inequality. The number of volunteers was at most $20$.

During the course of a year, the number of volunteers available to run a food bank each month is modeled by $V(x)$, where

$$V(x)=2 x^2-32 x+150$$

between the months of January and August. Here $x$ is time in months, with $x=1$ representing January. From August to December, $V(x)$ is modeled by

$$V(x)=31 x-226.$$

Find the number of volunteers in each of the following months.

Sketch a graph of $y=V(x)$ for January through December. In what month are the fewest volunteers available?

Write and solve an equation to answer each problem. Katie, Elizabeth, and Siobhan volunteer at the hospital. In a week, Katie volunteers 3 hours more than Elizabeth does and Siobhan volunteers 1 hour less than Elizabeth. Over 3 weeks, the number of hours Katie volunteers is equal to the sum of Elizabeth's and Siobhan's volunteer hours in 3 weeks. Complete the table to find out how many hours each person volunteers each week.

$$\begin{matrix} \text{Volunteer} & \text{Volunteer Hours per week} & \text{Volunteer Hours over 3 weeks}\\ \text{Katie}\\ \text{Elizabeth}\\ \text{Siobhan}\\ \end{matrix}$$

Which amino acid will a tRNA molecule be carrying if its anticodon is the following?

a. GGG

b. GAC

c. AUA

d. CGA

Figure shows a rotating shaft carrying a steady downward load of $100\ \mathrm{lb}$ at $\mathrm{C}$. Specify a suitable material.

When heated, $\mathrm{KClO}_3$ forms $\mathrm{KCl}$ and $\mathrm{O}_2$. When a sample of $\mathrm{KClO}_3$ is heated, $226 \mathrm{~mL}$ of gas with a pressure of $744 \mathrm{mmHg}$ is collected over water at $26^{\circ} \mathrm{C}$. At $26^{\circ} \mathrm{C}$, the vapor pressure of water is $25 \mathrm{mmHg}$. $(11.8,11.9,11.10)$

$$2 \mathrm{KClO}_3(s) \stackrel{\Delta}{\longrightarrow} 2 \mathrm{KCl}(s)+3 \mathrm{O}_2(g)$$

a. What is the pressure, in millimeters of mercury, of the dry $\mathrm{O}_2$ gas? b. How many moles of $\mathrm{O}_2$ were produced? c. How many grams of $\mathrm{KClO}_3$ were reacted?

How do Equiano and Prince reach similar conclusions about those who participate in the slave trade? Cite specific examples.

Write the word from the word web that best completes each sentence. Use context clues to help you. If necessary, consult a dictionary or glossary.

The store has ____________ this brand of clothing.

An engine’s internal energy changes from 8093 J to $2.0920 \times 10^{4}$ J. If 6932 J are added as heat, how much work is done on or by the system?

The life of a certain brand of AA battery is normally distributed with $\mu=8$ hours and $\sigma=1.5$ hours. Find each probability. The battery will last less than 6 hours.