Complete the following sentence using the imperfect form of the verb in parentheses. Follow the model.

Modelo Nosotros (ir) íbamos_______ a la escuela todos los días.

¡Mi mamá (ser)_______ muy traviesa de niña!

A professor teaching a large lecture class of 350 students samples her class by rolling a die. Then, starting with the row number on the die (1 to 6), she passes out a survey to every fourth row of the large lecture hall. She says that this is a Simple Random Sample because everyone had an equal opportunity to sit in any seat and because she randomized the choice of rows. What do you think? Be specific.

Answer the exercise given below.

Let $f(x)=x^2-2 x$. Find:

(a) $f^{\prime}(x)$

(b) $f^{\prime}(-1), f^{\prime}(1), f^{\prime}(2)$

Find the indicated term of the following arithmetic sequence.

$-8,-6,-4,-2, \ldots, 100^{\text {th }}$ term

What is Le Ch$\^{a}$telier's principle? Consider the reaction $2 \mathrm{NOCl}(\mathrm{g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})+$ $\mathrm{Cl}_2(\mathrm{~g})$. If this reaction is at equilibrium, what happens when the following changes occur?

For this change, what happens to the value of $K$ for the reaction as equilibrium is reached again? Give an example of a reaction for which the addition or removal of one of the reactants or products has no effect on the equilibrium position.

$\mathrm{NOCl}(\mathrm{g})$ is added.

In general, how will the equilibrium position of a gas-phase reaction be affected if the volume of the reaction vessel changes? Are there reactions that will not have their equilibria shifted by a change in volume? Explain. Why does changing the pressure in a rigid container by adding an inert gas not shift the equilibrium position for a gas-phase reaction?

Solve the initial-value problem. $y^{\prime \prime}-2 y^{\prime}-3 y=0, \ y(0)=2, \ y^{\prime}(0)=2$

Ten days later, A.P.'s mother calls you and states, "I think she has lice again! We worked so hard to get rid of them and clean everything. Is there something else we can use to treat her? What do we do now?" 9. What would you tell A.P.'s mother at this time? 10. List 3 Internet resources A.P.'s mother may find helpful. 11. A.P.'s pediatrician prescribes spinosad (Natroba) at this time. You will provide teaching to A.P.'s mother. Which statements are correct? Select all that apply, and correct the ones that are incorrect. a. Apply Natroba to wet hair. b. Shake the bottle before using. c. Leave it on the scalp without rinsing for 24 hours. d. An adult needs to apply the medication to A.P.'s scalp. e. A second treatment, if needed, may be applied in 1 week. f. After the medication is washed off, use a fine-tooth comb to remove treated lice and nits from the hair and scalp.

The Original Medicare Plan consists of Hospital Insurance (Medicare Part A) and Medical Insurance (Medicare Part B). For each of the following losses, indicate whether the loss is covered under Medicare Part A or Medicare Part B. (Ignore any deductible or coinsurance requirements. Treat each situation separately.)

• a. Mary, age 66, is hospitalized for five days because of a heart attack.
• b. John, age 62, has prostate cancer and visits his family doctor for treatment.
• c. Marion, age 80, is a patient in a skilled nursing facility. She has been confined to the nursing home for more than two years.
• d. Don, age 72, has a hearing impairment and obtains a hearing aid from a local firm.
• e. Sarah, age 68, has a speech impairment and is confined to her home because of a stroke. A licensed speech therapist visits her in the home and provides services to restore her speech.
• f. Fred, age 78, has an arthritic hip that makes it painful to walk and needs surgery to have the hip replaced.
• g. Michael, age 65, is covered under the Original Medicare Plan. His spouse, age 62, has cancer and requires chemotherapy.

Suppose points A and B were stretched away from the figure until the acute angles were decreased to 30$^{\circ}$, as shown in the figure. Would the total area increase or decrease? Prove your answer.

Find the first four terms as well as the tenth term of the sequence with the given $n$th term.

$$a_n=(-1)^n \frac{2^n}{n}$$

Y.C. was in labor for 12 hours and gave birth vaginally to Baby H, her first child. The nurse will complete the physical assessment and observe for physiologic changes in the newborn's transition from intrauterine to extrauterine life.

Y.C. has decided to breastfeed her infant. She asks for assistance. Identify 6 important points to include in your teaching plan.

In given problem, find the limits

$$\lim _{x \rightarrow 0^{+}} \frac{|x|}{x}$$

An ideal transformer has a turns ratio of n=10. The secondary winding is connected to a load $Z_{\mathrm{L}}=600+j 100 \Omega$. The primary is connected to a voltage source with a peak amplitude of $400 \mathrm{~V}$ and an internal impedance of $Z_{\mathrm{s}}=j 7 \Omega$. Find the average power delivered to the load.

Write equilibrium constant expression for the following reaction N$_2$(g) + 3H$_2$ $\rightleftharpoons$ 2NH$_3$(g)