Best solutions.Graded A+

matrix A rectangular array of numbers linear equation in n (j) unknowns a₁x₁ + a₂x₂ + ... + ax = b linear equation x + 3y = 7 or x₁ − 2x₂ − 3x₃ + x₄ = -1 (no products or roots of variables) system of linear equations (linear system) A finite set of linear equations

A newspaper provided a "snapshot" illustrating poll results from 1910 professionals who interview job applicants. The illustration showed that 26% of them said the biggest interview turnoff is that the applicant did not make an effort to learn about the job or the company. The margin of error was given as plus or minus 3 percentage points. What important feature of the poll was omitted? a. The confidence level b. The point estimate c. The sample size d. The confidence interval a. the c...

1. A woman gave birth to a healthy 7-pound, 13-ounce infant girl. The nurse suggests that the client place the infant to her breast within 15 minutes after birth. The nurse is aware that the initiation of breastfeeding is most effective during the first 30 minutes after birth. What is the correct term for this phase of alertness? a. Transition period b. First period of reactivity c. Organizational stage d. Second period of reactivity ANS: B The first period of reactivity is the firs...

1. Which statement by the client will assist the nurse in determining whether she is in true labor as opposed to false labor? a. I passed some thick, pink mucus when I urinated this morning. b. My bag of waters just broke. c. The contractions in my uterus are getting stronger and closer together. d My baby dropped, and I have to urinate more frequently now. C (Regular, strong contractions with the presence of cervical change indicate that the woman is experiencing true labor. The los...

1. An 18-year-old pregnant woman, gravida 1, para 0, is admitted to the labor and birth unit with moderate contractions every 5 minutes that last 40 seconds. The client states, my contractions are so strong, I don’t know what to do. Before making plan of care, what should the nurses first action be? a. Assess for fetal well-being. b. Encourage the woman to lie on her side. c. Disturb the woman as little as possible. d. Recognize that pain is personalized for each individual. D (Eac...

1. The nurse caring for a newly pregnant woman would advise her that ideally prenatal care should begin: a. Before the first missed menstrual period. b. After the first missed menstrual period. c. After the second missed menstrual period. d. After the third missed menstrual period. ANS: B Prenatal care ideally should begin soon after the first missed menstrual period. Regular prenatal visits offer opportunities to ensure the health of the expectant mother and her infant. 2. Prenatal...

The nurse learning about infection discovers that which factor is the best and MOST important barrier to infection? A. Colonization by host bacteria B. Gastrointestinal secretions C. Inflammatory process D. Skin and mucous membranes D. The skin and mucous membranes are two of the most important barriers against infection. A nursing manager is concerned about the number of infections on the hospital unit. What action by the manager would best help prevent these infections? a. Auditing st...

Study the steps used to solve the equation. Given: Step 1:c/2 - 5=7 Step 2:c/2 - 5+5=7+5 Step 3:c/2 + 0 = 12 Step 4:2(c/2 ) = 12(2) Step 5:c=24 Choose the property that justifies each step of the solution. Step 1: addition property of equality Step 2: additive inverses Step 3: additive identity Step 4: multiplication property of equality What is the solution set of -|-x| = -12? {-12, 12}

integrate sinx -cosx + c integrate cosx sinx + c integrate sec^2 x tanx + c integrate cosecxcotx -cosecx + c

E&M codes are ____________ evaluation and management (E&M) Key Parts of the HPI -- OLDCART Onset Location Duration Characteristics Aggravating Factors Relieving Factors Treatment OLDCART Onset -- When did this problem start? How did it start? Location -- Where exactly are the symptoms experienced? Duration --Are the symptoms constant, fluctuating, getting better or worse? Has it changed over time? Characteristics -- How are the symptoms experienced? Dull ache, sharp pain, heat, or elect...