# Posts by donna

Total # Posts: 504

**Statistics**

A construction company builds apartment buildings. The construction time follows a normal distribution with a mean time of 200 days and a standard diviation of 20 days. (a) What is the probability of completing a building in 224 days or less? (b) What is the probability that ...

**Statistics**

I need help with (b): A small company with 5 employees wants to know some statistics about their employee's ages. They surveyed the 5 employees and found that their ages were: 22, 29, 35, 37 and 42. (a)Determine: Mean age: 33 Median: 35 Range: 20 Variance: 59.5 S.D.: 7.72...

**Statistics**

So Bob - Final answer would be .441?

**Statistics**

You have a bucket with 3 black balls and 7 red balls. What is the probability of drawing 2 reds and 1 black in 3 draws if order is not important? (Assume replacement after each draw)

**statistics**

A population is normally distributed with a man of 100 and a standard deviation of 15. is it unusual for themean of a sample of 3 to be 115 or more? Why or why not?

**geometry**

m angle 2=6x-2

**Math**

This is Identity property of multiplication states that the product of 1 and any number or variable is the number or variable itself. For example, 4 × 1 = 4, - 11 × 1 = - 11, The teacher is probably trying to help them learn this particular property. You are a ...

**Literacy**

THE ANSWER FOR THAT QUESTION IS (A)

**business**

Positive roles and actions of individuals that help the group achieve its task goals include?

**healthcare management**

Hospice is a very important part of community health, but it is often an underutilized service in the community. Why do you think that is the case? As a hospital or clinic CEO, how would you address an underutilization problem with hospice services in your own community?

**healthcare management**

Many American hospitals have wound up employing family practice physicians or establishing contract management arrangements for their practices. Most hospitals that employ doctors have found that they are losing money on office operations. In essence, the hospital absorbs a ...

**Math**

The table is Input x. 0 1. 2 3. 4 5 Output y 4 10 16 22. I need to complete the table for y

**math**

write 3 different ones numbers you could add to 15 without needing to regroup

**Environmental Science**

the Nitrogen, carbon, phosphorous cycles roll in the tundra

**Physics**

A square pool with 180-m-long sides is created in a concrete parking lot. The walls are concrete 52.9 cm thick and have a density of 2.50 g/cm3. The coefficient of static friction between the walls and the parking lot is 0.515. What is the maximum possible depth of the pool? I...

**geometry**

Find the lengths of the sides of the triangle with dimensions 2x, 2x-3, 15

**algebra word problem**

20 more than two times a number

**20 more than two times a number**

20 more than two times a number

**chemistry 110**

in regards to conductivityhow is a substance/solute classified as strong, weak or nonelectrolyte

**English**

which of the following should you not do in the close of a job interview? A. give a final explanation for a weakness that you have. B. show enthusiasm for the job. C. summarize your accomplishments and strengths. D. smile and relax

**English**

which should not be included as a heading in a chronological resume?

**English**

Which of the following would be an example of an emotional appeal that is part of a persuasive message? A. Written agreement are binding. B. There is reliance on nonverbal signs to communicate. C. Oral agreements are not binding. D. There is a preference for direct communication.

**English**

You are attending a professional conference and are privileged to be introduced to Carol Peters. You knolw nothing about her except she is an executive at a very successful company. You have an idea that you would like to talk over her. How should you address this person ...

**English**

the design of a document reflects on the writer in terms of all of the following except: A. social status, B professionalism, C. competence, D. credibilty

**Inventory**

Jan Gentry is the owner of a small company that pro¬duces electric scissors used to cut fabric. The annual demand is for 9,000 scissors and Jan produces the scissors in batches. On average, Jan can produce 185 scissors per day. Demand for scissors has been about 45 scis&...

**regression**

You have heard about but never took seriously the Old Farmer’s Almanac claim that you can tell the temperature of the air by counting the number of cricket chirps in 1 minute. You decide to test the claim so one night when the temperature was 76 degrees you counted the ...

**English**

Before writing a recommendation report to the CEO, Dee and Carlos distribute a survey to everyone in their company to determine which new benefits employees are most interested in. What part of the writing process does this activity represent?

**English**

Identify the sentence that uses numbers and abbreviations correctly A: 26 people posted messages to my blog in just thirty-three minutes. B: I learned in anatomy class that the adult human body contains 206 bones, and over 20 of them are located in the hand alone. C: To avoid...

**English**

Indicate whether the underlined words or groups of words need capital or lower case letters by selecting the best choice. “Hush little baby,” my grandfather would often whisper softly to me, “Don’t say a word.” A. “don’t way a word.” B...

**English**

You are a technical writer in a large company, working on a training manual to help hew users learn the company’s computer system. Employees will use your manual in training seminars taught by your company’s trainers. The manual will also serve as an on-the-job ...

**Literacy**

THE ANSWER IS (C)

**Math**

How do I write a polynomial expression to represent the third side of the triangle? I know one side is 2x-3y and the other is x+2y and P=5x+2y? I am lost.

**science**

what is the difference between intended benefits and unintended consequences?

**math**

A researcher predicts that listening to music while solving math problems will make a particular brain area more active. To test this, a research participant has her brain scanned while listening to music and solving math problems, and the brain area of interest has a ...

**early childhood education**

one of the children in your care asks why cant sonya walk in reference to a four year old child with cerebral palsy the best respinse is a)it doesnt matter she still our friend b)shh don't ask questions like that youll hurt her feelings c)sonya has special needs so please ...

**statistics**

For the following scores, find the (a) mean, (b) median, (c) sum of squared deviations, (d) variance, and (e) standard deviation: 1,112; 1,245; 1,361; 1,372; 1,472

**statistics**

For the following scores, find the (a) mean, (b) median, (c) sum of squared deviations, (d) variance, and (e) standard deviation 3.0, 3.4, 2.6, 3.3, 3.5, 3.2

**statistics**

A psychologist interested in political behavior measured the square footage of the desks in the official office of four U.S. governors and of four chief executive officers (CEOs) of major U.S. corporations. The figures for the governors were 44, 36, 52, and 40 square feet. The...

**early childhood education**

children with special needs may have delays or be slow to progress in one or more areas they a)usually required special equipment to help them move around b)need opportunities to interact with nondisabled children c)have difficulty fitting in with other children d)are good ...

**Early childhood education**

Julie has a speech delay and is often shy with other children. The best way to include her in your daily group activities is to a)ask a volunteer to provide her with individual attention b)provide her with some books to read while you work with other children c)let her watch ...

**math**

C(x)=(x-1)/(x^(2)-25)

**chemistry**

calculate the amount of energy (kJ) lost when 50 mL of water at 0 Celcius freezes at 0 Celcius

**math**

graph (3,5) (8,-1)

**Medical Coding ICD-9-CM**

A 75-year-old male presented to the ambulatory surgical unit for a cystoscopy. The patient's complaint was hematuria. A transurethral diagnostic cystoscopy was performed. No acute or abnormal findings were determined to be the cause of his hematuria. The patient was sent ...

**calculus**

if a rocket is launched upward at 80fett per second. what will its height be at (t) seconds later s= 80t-14t^2

**finance/math**

the amount of loan a bank can make is limited tothe amount equal to its excess reserve.

**Chemistry**

Dilute H3PO4(aq) and NaOH(aq) are mixed in chemically equivalent quantities. Write the formula equation for the reaction

**Chemistry**

The equilibrium constant, Kc is 3.2 x10 -34 at 25C for the reaction 2 HCl(g) <=> H2(g) + Cl2(g). what is The equilibrium expression, Kc for the reaction

**Accounting**

What is the equation for a simple interest rate of 47,000 note at 12 percent in 3 years? Please help resolve.

**stats**

how to work this math problemAn archaeologist has 250 animal bone fragments from prehistoric site -of these 195 are white-tail deer bones. Construct the 90% confidence interval for the percentage of bone fragments from this site that are from white-tail deer

**bio-chem**

C- and K+ channels are open

**physics**

n object is dropped from rest from a height 5.8 × 106 m above the surface of the earth. If there is no air resistance, what is its speed when it strikes the earth? The acceleration of gravity is 9.81 m/s2 and the radius of the Earth is 6.37 × 106 m. Answer in units...

**Math**

How many 9" squares are there in a 8' x 10' area?

**english**

what is an outcast story

**HCS/341**

Who coined,"Common sense and compassion in the workplace has been replaced by litigation?" Thank you

**use equation to complete the function table**

Complete the table write equation to show relationship Input x. 0,1,2,3,4,5 Output y 4,10,16,22,?,?

**Economics**

Indicate at which point flat-of-the-curve medicine is experienced in the following example (imagine that antibiotics have been prescribed for a given population of 1,000 elderly persons).

**Social Studies**

1.a 2.b 3.a

**Math**

How do I solve this 120-42÷ (10*4-4*6) Can you explain

**College Algebra**

120-42÷ (10*4-4*6)

**Math grade 3**

Identify the attributes of the shapes. Which attributes change according to a pattern?

**Math**

multiplying by 1 to find an expression equivilent to 12over19 with a denominator of 133d

**chemistry**

how many moles of gas are contained in a 50.0L cylinder at a pressure of 100.0 atm and a pressure of 35 C?

**Algebra**

Thank you

**Algebra**

Can this be solved? x+y=160 x=4y+9

**Algebra**

Thank you

**Algebra**

Why do i never get any help

**Algebra**

I have a problem that I need help with can someone show me the steps LiveStock Feed- Soybean meal is 16% protein and corn meal is 9% protein. How many pounds of each shoul be mixed to get a 350-lb mixture that is 12% protein?

**world histiry**

what is the order of the pyramid of the japanes fuedal system

**Algebra**

How would you solve this using substitution method y= 3 + x 2x + y = 8

**algebra**

I need to know if I am doing this problem right when sustitution method. y+2x=3 y+2x=-4 y+2x=3 -1(y+2x=3)-y-2x=-4 now add the two equation y-2x=3 -y-2x-4 the answer would be -4y=7 then divided -4=7 answer 1.75 I no that there is more to this answer I am just stuck and not sure...

**algebra**

I need to know if I am doing this problem right when sustitution method. y+2x=3 y+2x=-4 y+2x=3 -1(y+2x=3)-y-2x=-4 now add the two equation y-2x=3 -y-2x-4 the answer would be -4y=7 then divided -4=7 answer 1.75 I no that there is more to this answer I am just stuck and not sure...

**Algebra**

Ok so let me start over. System of equation can be solved by graphing, substitution or elmination method. I only have to choose one method and I was trying the elimination method is that how my problem seems to be?

**Algebra**

System of equation. substitution or elmination method??

**Algebra**

yes

**Algebra**

I would like to know if I did these problem right? y + 2x =3 Y +2x=-4 Y+2*x-3=0 y=2*x+4=0 If not can you show me the steps

**science**

A machine has a mechanical advantage of 2. This means its output force is _____. a. 0.5 times greater than the input force b. 2 times smaller than the input force c. 2 times greater than the input force d. 2 times more efficient than the input force

**Algebra**

Can someone help me with this one and how to find the equation? Suppose you are paying your cell phone bill. The function C(m) represents the cost C of your monthly cell phone bill with m minutes. Given the equation: What does the number 0.25 represent?

**Algebra**

Suppose you are paying your cell phone bill. The function C(m) represents the cost C of your monthly cell phone bill with m minutes. Given the equation: What does the number 0.25 represent?

**Algebra**

This is my first asking I did not do this before?

**Algebra**

I need toIs the following pair of lines parallel or perpendicular? Prove your answer. 2y – x = 2 y + 2x = 4 can you explain how to break this down ...

**Algebra**

Thank you I did not see the answer. Thank you so much

**Algebra**

I need toIs the following pair of lines parallel or perpendicular? Prove your answer. 2y – x = 2 y + 2x = 4 can you explain how to break this down ...

**arithmetic**

I am 5'2 and cast a shadow 3' long. My friend casts a shadow 3' 5" long. How tall is he?

**health**

Why would the task of Universal health care coverage raise health care costs?

**Algebra**

how do I check my answer to a problem. The problem is: x/5 - 1/2 = 3 I know the answer is 35/2 but how do you check it. 35/2 /5 - 1/2 = 3?

**chemistry**

How would you caculate this problem: What is the mass in grams of 150*10^12 iron atoms, each having a mass of 56 amu?

**algebra**

y >=-1

**algebra**

the xx is in the answer box, so it is x x then the answer

**algebra**

0.8x+1<=1.2x-8 x x

**algebra**

9x-7y=-49

**Algebra**

p(x)=x^2-2x+10

**Algebra**

y varies directly as x, and y=20 when x=5

**Health Care**

I need help with a team powerpoint on Health Care Costs and need to do 3-4 slides with speaker notes on Recommendations for Improvement

**math**

A foyer is 8 feet by 8 feet the tiles are 4 square feet how many tiles will fill the space

**Chemistry**

Cooking oil has a boiling pt of 200 degress, water is 100 degrees. explain theses facts given the strength of waters hydrogen bonds

**3rd grade math**

4+4+3=11 2x5+1=11

**patients records**

what is an accreditation agency and name an area of records management that is affected by its guidelines.

**Chemistry**

AgCl--->Ag^(+)+Cl^(-) AgNO3= 2E^-4L*0.15mol/L AgNO3/(.01L)=mol/L AgNO3=mol/L Ag^(+)=.003M Find Ksp(AgCl) in solubility constant table Ksp(AgCl)=1.77E-10 1.77E-10=[.oo3M Ag(+)][Cl^(-)] solve for Cl^(-) Cl^(-)=5.9E-8M 5.9E-8mol/L*.01L in tank * mm 35.453 g/mol=2*10^-8 g

**College Algebra**

This is my problem I need help with. (7,-8); 3x+5y=6