If P(A)=0.5, P(B)=0.4, and A and B are mutually exclusive, Find P(A or B). P(A or B)=____

If A, B, and C are mutually exclusive events, is it possible for P(A)=0.3, P(B)=0.4, and P(C)=0.5 ? Why or why not?

The four main types of macromolecules are carbohydrates, lipids, nucleic acids, and proteins. Write a method for classifying a macromolecule based on its chemical composition.

Use the Laws of Logarithms to expand the expression. $\log _{3} \frac{\sqrt{3 x^{5}}}{y}$

Graph each function. Identify the domain and range.

$$g(x)=\left\{\begin{array}{c}{-2 \text { if } x<-4} \\ {x-3 \text { if }-1 \leq x \leq 5} \\ {2 x-15 \text { if } x>7}\end{array}\right.$$

How do vaccines prevent disease?

Graph each equation by hand by plotting points. Use a graphing utility to approximate the intercepts and label them on the graph. $y = x^2 - 5$

Explain why pulleys are in the lever family.

The nth term of an arithmetic sequence is given. What is the common difference d? $a_{n}=-10+20(n-1)$

Of the following, which carries oxygen in blood? A) red blood cells B) platelets C) white blood cells D) lymph

While you are working as a nurse on a gastrointestinal/genitourinary (Gl/GU) unit, you receive a call from your affiliate outpatient clinic notifying you of a direct admission, with an estimated time of arrival of $60$ minutes. She gives you the following information: A.G. is an $87$-year-old woman with a $3$-day history of intermittent abdominal pain, abdominal bloating, and nausea and vomiting (N/V). A.G. moved from Italy to join her grandson and his family only $2$ months ago, and she speaks very little English. All information was obtained through her grandson. Past medical history includes colectomy for colon cancer $6$ years ago and ventral hernia repair $2$ years ago. She has no history of coronary artery disease, diabetes mellitus, or pulmonary disease. She takes only ibuprofen (Motrin) occasionally for mild arthritis. Allergies include sulfa drugs and meperidine. A.G.'s tentative diagnosis is small bowel obstruction (SBO) secondary to adhesions. A.G. is being admitted to your floor for diagnostic workup. Her vital signs (VS) are stable, she has an IV of D5 $\frac{1}{2} \mathrm{NS}$ with $20$mEq KCl infusing at $100$ \hr, and $3$ L oxygen by nasal cannula $\left(\mathrm{O}_2 / \mathrm{NC}\right)$

The NGT suddenly drains $575$ mL; then it slows down to about $250$ mL over $2$ hours. Is this an expected amount?

There are two six-sided dice. The numbers on each die go from one to six. What is the probability that the sum and product of the dice are the same?

On August 14 Loretta Harper, owner of Peabody Cards and Gifts, deposited the following items in the checking account of the business. Cash: $784.29. Checks: Charles Ling, drawn on American Bank of Commerce, ABA No. 32-7091;$39.44. Keith Lopez, drawn on People’s Bank, ABA No. 84-268; $22.95. Marjorie Luke, drawn on Horizon Federal Savings and Loan, ABA No. 84-6249;$52.95. Mable Parker, drawn on Security National Bank, ABA No. 84-2242; $67.45. On August 15 Peabody received the July bill from Northeast Telephone for$214.80. On August 17 Peabody received an advertising bill from the Bayside News for $275.00. Using the forms provided in your working papers: 1. Complete a deposit slip. 2. Record the deposit on the check stub for Check 41. 3. Record the information for paying the telephone bill on Check Stub 41 and complete the check stub. Use August 16 as the date. 4. Prepare Check 41 to pay the telephone bill and sign your name as drawer. 5. Prepare the check stub and Check 42 to pay the bill for advertising. Use August 17 as the date and sign your name as drawer.

A person's metabolic rate is the rate at which the body consumes energy. Metabolic rate is important in studies of weight gain, dieting, and exercise. Here are the metabolic rates of seven men who took part in a study of dieting. (The units are calories per 24 hours. These are the same calories used to describe the energy content of foods.)

$$\begin{array}{cccccc}{1792} & {1666} & {1362} & {1614} & {1460} & {1867} & {1439}\end{array}$$

Use the formula to calculate the mean. Interpret this value.