# Posts by tom

Total # Posts: 1,497

math

algebra
3 4/9 x 1 4/5 show work please

critical thinking
Red herring

chemistry
Given 1.115 atm of carbon monoxide reactimg with 1.553 atm of oxygen in a closed container at a constant temperatue, what is the theoretic yield of the carbon dioxide?

chemistry
how many grams of solute are in 250ml of 0.500M glycerin . (C3H8O3=92.1 amu)?

AP BIO
2. Suppose the DNA molecule were composed of six monomers. In addition to the monomers A, T, C and G, two other monomers, O and P, were present. Furthermore, O and P were known to pair only with each other. Which of following statements regarding this kind of DNA molecule ...

AP BIO
1. A biologist measured the amount of DNA in several single diploid cells taken from a culture. He knew that these cells could divide mitotically, but not meiotically. His data is shown below: Cell Number and DNA content in micrograms: Cell 1 (11.1 micrograms) Cell 2 (5.4 ...

Statistics
Calculate the following: a) Determine the sample size necessary to estimate a population mean to within 1 with a 90% confidence given that the population standard deviation is 10. b) Suppose that the sample was calculated at 150. Estimate the population mean with 90% confidence.

Statistics
Determine the sample size necessary to estimate a population proportion to within .03 with 90% confidence assuming you have no knowledge of the approximate value of the sample proportion.

Statistics
Draw the operating characteristic curve for n = 10, 50, and 100 for the following test: Ho: ì = 400 Hi: ì > 400 á = .05, ó = 50

Statistics
HO: µ = 70 H1: µ > 70 ó = 20, n = 100, xbar = 80, á = .01 a) calculate the value of the test statistic b) set up the rejection region. c) determine the p-value d) interpret the results

statistics
A statistics practitioner would like to estimate a population mean to within 50 units with 99% confidence given that the population standard deviation is 250. a) What sample size should be used. b) Repeat part (a) with a standard deviation of 50. c) Repeat part (a) using a 95...

Auditing
8 d

pre-calculus
Graph each complex number. Then express it in rectangular form. 2(cos(4pi/3) + isin(4pi/3)) I don't understand where to go from here.

calculus
Evaluate lim as x-> 0 square root (x+1) - square root (2x+1) / square root (3x+4) - square root (2x+4)

Math
What is the fromula to calculate the volume of a washer?

quick precal concept
is there no solution for a triangle with C=50deg a=25 c=22?

mth 157
Determine which types of display could be used to illustrate the given data. 4) The midterm test scores for the seventh-period typing class are listed below. 85 77 93 91 74 65 68 97 88 59 74 83 85 72 63 79 Which of the following types of display could be used to illustrate ...

mth 157
Drawing one slip, what is P (slip contains a vowel)?

biology
what are some of the ways in which we can differentiate spores from coccus shaped bateria?

biology
what are three function of a teeth

biology
what are three function of a teeth

biology
what are three function of teeth

Biology
Can you give the speed in the capillaries as a percentage of the speed in the arteries.

Biology
Why is it desirable for blood to flow through the capillaries comparratively slowly.

Biology
Is there an experiment which you could do to test the suggestion that veins have more stretchable walls than arteries.

Biology
Is there an experiment which you could do to test the suggestion that veins have more stretchable walls than arteries.

Biology
Why veins contain valves.

Biology
Why capillaries have very thin walls.

physics
113.5

Language
How do I set up a comparsion table for two stories

math
Solve the inequality and show the number line. x + 29 < 33 for x > 0

Biology
Why arteries have more muscle in their walls than veins

Biology
Why the left ventricle has a thicker more muscular wall than the right ventricle.

Biology
Why the right atrium is larger than the left atrium.

Biology
Why does the blood pressure goes up and down all the time.

Can't understand trig problem

Carpentry
Parts of a concerte block

cjs 250 Intro to security
if a church has no security plan in place, what would be a less pertinent component for that particular environment during a vulnerability assessment?

FDA
whats the FDA's main job has it Has it implemented any new rules recently?

Politics
When and why was The FDA formed? Was it in response to a national event or some sort of emergency?

carpentry
how to install a lock

religous
from the 4 theories which is least likly to bene fit from wining the lottery and why

Religious
Explain the concept of hedonism an how is this concept seen as the dominant theory in our society today.

Religious
why is the concept of determism often regarded as more important than christianity.

Accounting
North Pole Cruise Lines issued preferred stock many years ago. It carries a fixed dividend of \$6 per share. With the passage of time, yields have soared from the original 6 percent to 14 percent (yield is the same as required rate of return). A. What was the original issue ...

biology
Compare and contrast the phloem and xylem vessels.

biology
explain how water is transport from the root to mesophyll cells in a leaf

religion
Much Thanks, Ms. Sue.

religion
Does anybody have a website with recent demographics on religions or at least Buddhism? Google doesn't really help.

carpentry
Explain the number behind the abrasive sheets

Carpentry
Explain the number behind the sheets

carpentry
list types of abrassive material.

carpentry
What is abrassive.

History
When did the Latin American Revolution start?

Social Studies
What was the purpose of Hammurabi's Code

economics
"The Fed should simply increase the money supply at the same rate that the full employment economy grows, and the government should desist from any stabilizing urges." What school of thought would make this suggestion, and how do economists of that school justify ...

physics
A dolphin jumps with an initial velocity of 10.5 m/s at an angle of 32.0° above the horizontal. The dolphin passes through the center of a hoop before returning to the water. If the dolphin is moving horizontally when it goes through the hoop, how high above the water is ...

physics
A 0.34 kg pendulum bob is attached to a string 1.2 m long. What is the change in the gravitational potential energy of the system as the bob swings from the bottom of the string, where θ = 37°? i don't know how to do this. The bottom of the string is 1.2 m and it ...

arithmetic
On one of the questions of a recent math test, a student divided by 9 instead of multiplying by nine. This computation gave an answer of 18. What's the correct answer?

music
5 ways to change a melody to an arrangement

social studies
troooooooool-loooooooool-loooooool, no tell !!!!!!!!!!!

electrical
Explain the term short circuit and open circuit ?

Physics
A 0.15 kg baseball is thrown towards a batter with a velocity of 40 m/s. The batter hits the ball and returns it directly back with a velocity of 60 m/s. What is the change in momentum of the ball?

Family Life
Information on drugs

Language
How do you start off a business letter.

algebra
parallel to line 2/3x-4=0 through (-4,-6)

pre-algebra
just do the price, in BRAND A's case 15.98 times the discount- 30%...move the decimal back two places...turns into .30 15.98 X .30 = your answer

family life
information on teenage pregnancy

Chemistry
How many milliliters would it take to titrate 10.0 mL of 0.75 M HCl with 0.10 M NaOH?

ancient history
go to google and type in roman goddess of love. You will get tons of information.

science
Explain why the index of refraction of an object is a physical property?

science
what do you notice about the ratio (sin θi/ sin θR) for all angle of incidences greater than 0 degrees? explain why you would expect this to be true?

family life
One more thing Can you give me an example of a goal . Thanks.

Family Life
how to create a step-by-step action plan.

Family life
How to set up a short-term health goal.

Family life
Can you name a short-term health goal

Accounting
1. A company acquired some land for \$80,000 to construct a new office complex. Legal fees paid were \$2,300, delinquent taxes assumed were \$3,400 and \$5,850 was paid to remove an old building. What is the cost basis for the land? a. \$90,600 b. \$91,550 c. \$88,150 d. \$87,200 2. ...

Social Studies
What was the relationship between the rise of capitalism and the temperance movement? I have read and read online and in books and still not sure of the answer.

Biology
Can you explain this question A person who has been sunbathing all day eats a salts tablet.

Biology
What effect does cooking have on liquid protein

Biology
What effect does cooking have on sunflower oil.

Probability
223

physics
In the ideal apparatus m1=2.0 kg. What is m2 if both masses are at rest? How about if both masses are moving at constant velocity?

English
1. Today we eat foods/food which come from all over the world. (Do we have to use 'food' or 'foods'? Are both OK? When do we use 'foods'? 2. I like healthy food. 3. I like health food. 4. I like healthy foods. 5. I like health foods. (Which ones are ...

English
1. He is helping an old man get on the bus. 2. He is helping an old man get onto the bus. (Which preposition do I have to use? are both OK?) 3. Look at the picture. He is trembling because of cold. It is winter. It is windy as well. Look at the bare (naked, leafless) tree. ...

English
1. Because she will come here, I will meet her. 2. Because she comes here, I will meet her. 3. As she will come here, I will meet her. 4. As she comes here, I will meet her. (Which one is grammatical?)

English
1. Meeting her, I will be very glad. 2. When I meet her, I will be very glad. 3. If I meet her, I will be very glad. 4. As I meet her, I will be very glad. 5. As I will meet her, I will be very glad. (Are they all the same? Which one is correct, #4 or #5?)

English
1. Where is there a candy striper? 2. Where can we see a candy striper? 3. Where is a candy striper from? 4. Where does a candy striper live? 5. What does a candy striper wear? 6. What clothes does a candy striper wear? 7. What kind of clothing does a candy striper wear? 8. ...

English
I have pictures of national flags of six countries. Which national flag is French natonal flag? Which country's national flag is this picture? Which national flag is related to French? Which national flag is French's. I want you to find Chinese national flag. Will you ...

English
Looking for interesting volunteer work? How about cleaning at a city hall. People of the city hall needs your help. You can be very useful there! Where: Washington City Hall When: every Friday Tel 011-123-4567 (Are the poster for volunteers grammatical? Would you like to take ...

English
Looking for interesting volunteer work? How about taking children at an orphanage? Children are wating for yor help. You can be their friend! Where: at Chicago Orphanage When: every Sunday Tel 051-123-4567 (Are the poster for volunteers grammatical? Would you like to take a ...

English
Let's work in pairs. Say the specialty of your friend you know well to your partner. Use the following pattern. * I have a friend who ___________. For example, if one of your friends swims very well, say to your partner,"I have a friend who can swim very well." ...

English
1. They wear pink and white stripe uniforms. 2. They wear pink and white striped uniforms. (Which one is correct? Are both OK?)

English
1. Candy stripers are teenage volunteers at hospitals. (What is the meaning of 'stripers' in the sentence?) 2. She also takes sick children outside in wheelchairs. 3. She also takes sick children out in wheelchairs. 4. She also takes out sick children in wheelchairs. 5...

English
1. He works at/in the library. 2. He works at/in the town hall. 3. He works at/in the hospital. (Which preposition do I have to use? Are both OK? Which one is popular?) 4. I want to drink iced tea. 5. I want to drink ice tea. 6. I want to drink an iced tea. 7. I want to drink ...

English
1. As he was sick, he could not go out. 2. Being sick, he cound not go out. 3. Sick, he could not go out. (Are they all the same? Is #3 grammatical?) 4. Reading a book, he chew gum. 5. Shaking hands, he said hello. 6. Smiling brightly, he greeted me. 7. Walking in the park, he...

English
1. Walking in the park, I saw Mina. 2. When I walked in the park, I saw Mina. 3. When I was walking in the park, I saw Mina. (Does #1 mean #2 or #3? Are they all the same?) 3-1. Being walking in the park, I saw Mina.(Is this one correct?) 4. With night coming on, we started ...

calculus
A vector field with a vector potential has zero flux through every closed surface in its domain. it is observed that although the inverse-square radial vector field F = (e^r)/(p^2) satisfies div(F) = 0, F cannot have a vector potential on its domain {(x,y,z)does not equal (0,0...

Calculus
thank you very much

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