Tuesday
June 30, 2015

Posts by Angie


Total # Posts: 1,234

math/ calculus
full work out with explanation of this problem please we're working with derivatives and i dont understand it given h(x)= cotx/x find h'(pi/2)
December 20, 2011

math/ calculus
its like a sub three times the squareroot of x^2-2x+1
December 19, 2011

math/ calculus
find f''(x) if f(x)= 3(ãx2-2x+1)
December 19, 2011

math/calculus
given h(x)= cotx/x find h'(ð /2)
December 19, 2011

math/ calculus
given h(x)= cotx/x find h'(ð/2)
December 15, 2011

Physics
The drawing shows an ideal gas confined to a cylinder by a massless piston that is attached to an ideal spring. Outside the cylinder is a vacuum. The cross-sectional area of the piston is A = 2.50 10-3 m2. The initial pressure, volume, and temperature of the gas are, ...
November 16, 2011

statistics
Hi there, I need help with the quialitive summary paper. My subject is on elder abuse.
November 16, 2011

math
joe left a campsite on a trip down the river in a canoe, traveling a 6 km/h. four hours later, joe's father set out after him in a motorboat. The motrboat traveled at 30 km/h. how long after joe's father started did he overtake the canoe? how far had joe traveled down ...
November 15, 2011

math
a train left podunk and traveled north at 75 km/h. two hours later, another train left podunk and traveled in the same direction at 100 km/h. how many hours had the first train traveled when they were 1420 km apart?
November 15, 2011

computer
Which type of graphics file format keeps track of each individual point in the immage? a) bitmap b) detailed image c)pointilated D) vector.....
November 9, 2011

Chemistry
My mobile phase for HPLC (High Performance Liquid Chromatography) test consists of 3 components in the ratio 5:250:745. In preparing the mobile phase, is it advisable to first measure 745ml of component A, followed by 250ml of component B and lastly 5ml of component C?
November 3, 2011

math
Howard leaves the dock and sails 2.5miles west He turns south and sails 3.5 Then he turns east and sails 2.5 miles In what direction should howard turn if he wants to use the most direct route to return to the dock ? If Howard use this route ,how many miles will he hv sailed ...
November 2, 2011

Chemistry
Hi, I have a question on column length for HPLC (high performance liquid chromatography). If the column length is increased,eg from 100mm to 150mm and all other column parameters e.g. particle size of stationary phase, internal diameter..etc.remain the same, how does it affect...
October 20, 2011

Arts/230
Social views and patterns are often protrayed in art. How did the rising middle-class of the enlightenment era play into the context of their painting? Did it contribute to or detract from the technical qualities of the paintings?
October 9, 2011

Chemistry-help needed
Posted by angie on Saturday, October 8, 2011 at 6:02am. I have a method using HPLC (high performance liquid chromatography). It states that a 4.6 x 150mm,3um column should be used. (stationary phase : octadecylsilyl silica gel). I have a 4.6 x 100mm,2.7um column, silica-based...
October 8, 2011

Chemistry-thanks
I have a method using HPLC (high performance liquid chromatography). It states that a 4.6 x 150mm,3um column should be used. (stationary phase : octadecylsilyl silica gel). I have a 4.6 x 100mm,2.7um column, silica-based, bonded-phase (non-polar) column. Can you advise if ...
October 8, 2011

math (please help)
Let r= 3-3 sin θ How do I test for symmetry θ = π/2?
October 5, 2011

Chemistry
Is there a formula used to calculate this problem, or should I only look at the table in my book?
October 4, 2011

business communications
when you are writing subject lines for negative messages to peers and subordinates: a) put the topic, but not your action on it, in the subject line. b)put the topic, including your action on it, in the subject line. c)do not include the topic on the subject line. d)describe ...
September 28, 2011

General-English
Posted by angie on Sunday, September 25, 2011 at 4:48pm. Is the change in trade name of a material considered a "like-for-like" change? General-English - Ms. Sue, Sunday, September 25, 2011 at 4:52pm Please explain what you mean by a "like-for-like" change ...
September 25, 2011

General-English
Is it an equivalent (i.e. identical?"? For example, if I change an old piece of equipment with a new piece which has exactly the same specifications as the old one, then it is an equivalent change. In this case, I think it is not an equivalent change?
September 25, 2011

General-English
Is the change in trade name of a material considered a "like-for-like" change?
September 25, 2011

physics
if two lighting volts heat exactly same place at the same time in are frame of ref,it is possible that observes in other frames will see the volts heating at def. time or diff. places? explain
September 25, 2011

physical science
if two lighting volts heat exactly they same place at they same time in are frame of ref.,it is possible that observed in other frames will see the volts heating at diff. time r at diff. places????? explain.
September 25, 2011

geometry
U=(a,b,c,d,e,f,g,h,i,j,k) A=(a,c,d,f,g,i) B=(b,c,d,f,g) C=(a,b,f,i,j) Determine the following A'square B'
September 22, 2011

physics
A particle travels along a straight line with a speed = (0.50 -7 ), where is in seconds. Determine the acceleration of the particle when = 2 .
September 19, 2011

DRAMA
Thanks
September 18, 2011

DRAMA
One difference between tragedy and comedy is that tragedy A. uses supernatuarl elements B. usually features an extraodinary hero. C.makes us laugh at ourselves,not others. D. uses metaphors and analogy to make its point
September 18, 2011

The Short Story Part 2
Thank You
September 17, 2011

The Short Story Part 2
In a "Pair of Silk Stockings",the silk stockings are a symbol of? A.Mrs. Sommers's inability to handle money. B.Mrs. Sommers's lack of concern for her children. C.Mrs. Sommers's selfish needs. D.Mrs. Sommers's desire for attention.
September 17, 2011

chemistry
How many grams of Cu(OH)2 can be produced from the reaction of 0.500g Cu with 30.0 mL of 3.0M NaOH? Which reactant is the limiting reagent?
September 14, 2011

Math
Water covers approximately 11,800 mi squared of Florida, which is about 18% of Florida's area. What is the total area of Florida to the nearest thousand square miles?
September 14, 2011

statistics
128
August 25, 2011

algebra
jim bought a pair of shoes for $50 and laces for $1. if the sales tax is $7, how much tax must he pay?
August 17, 2011

math
A separate blueprint for the ramp uses a scale of 1cm : 25cm. The height of the ramp on the blueprint is___ cm.
August 11, 2011

pre algreba
7-3 (x-5) thxs
July 13, 2011

pre algreba
7-3 (x-5) thxs
July 13, 2011

math
7x+4=2x+7
July 11, 2011

accounting
Paid 55.00for landscaping property. Used cash. Journalize
May 29, 2011

Chemistry
Which equation shows conservation of mass and charge? A.NH4Br → NH3 + Br2 B. 2Mg + Fe3+ → Mg2+ + 3Fe C. H2SO4 + LiOH → Li2SO4 + H2O D. Cu + 2Ag+ → Cu2+ + 2Ag It's either b or d, since they both have two elements with an oxidation number of 0. Which ...
May 21, 2011

sociology
Which sociological perspective holds the view that people create their social worlds through interaction and manipulation of symbols? (Points : 1) functionalist conflict interactionist global
May 15, 2011

University Calculus
Set up (do not evaluate) the integral that gives the surface area of the surface generated by rotating the curve y=tanhx on the interval (0, 1) around the x-axis. Anyone who can help? Not really sure how to even begin! Thanks
May 13, 2011

Math
If a pizza with a diameter of 12 inches costs $10.99 , based on area, how much should a 15 inch pizza cost?
May 8, 2011

english
1. Select the sentence that is punctuated correctly. (Points : 1) Paloma did not make it to work for, her car broke down on the freeway. Paloma did not make it to work for her car, broke down on the freeway. Paloma did not make it to work, for her car broke down on the freeway.
April 25, 2011

English
This is a thank you letter to a company. Please check it and let me know what you think. If I need to change something or its just fine. Check for any errors. Thank you very much for taking the time to meet with me on April 14 regarding the position of Administrative Assistant...
April 10, 2011

English
Dear Mr. Kimball: Would you be interested in owning one of the most important books collection in our nation history? American Literature Masterpieces is a collection being published by the American Literary Association. The collection consists of 125 volumes of the greatest ...
April 10, 2011

English
Please read and check for any errors.Let me know what I need to change or add. I was debating whether ot not I suppose to underline American Literature Masterpieces.Thank you so much. _______________________________________ Would you be interest in owning one of the most ...
April 10, 2011

Pre-Algreba
The ratio of the number of postcards john had to the number of postcards Zachary ha d was 4:9. Zachary had 45 more postcards than John. After giving some postcards to John, Zachary had 6/7 as many postcards as John. (A) How many postcards did Zachary have in the beginning? (B...
April 6, 2011

HCS/325 HEALTH CARE MANAGEMENT
How will ethical issues alter your way of conducting change in the organization
March 21, 2011

math
please help the multiple choice answers do not match problems! 15-3+2-9 choices 0, 2, 4, 8 16+4divided by 2+9 choices 4, 11, 13, 21
March 21, 2011

math
this is multiple choice but 5 is not a choice they are 0, 2, 4 or 8
March 21, 2011

math
what is the value of this expression 15 - 3 + 2 - 9
March 21, 2011

austin community college
how many outcomes are there in an experiment consisting of rolling three dice followed by tossing a coinonce?
March 20, 2011

math
How many two-digits multiples of 3 are factors of 144?
March 15, 2011

math
Bill and Rosa have only nickels and dimes. Rosa has 75 cents and Bill has 90 cents. Each has the same number of coins and Bill has the same number of dimes as Rosa has nickels. How many nickels does Rosa have?
March 14, 2011

PSYCHOLOY
CONTRAST TWO THEORIES OR PERSPECTIVES FROM LATE STAGE ADULT DEVELOPMENT
March 8, 2011

math !!!! :O
Principal: $1,610 Interest rate: _______________ Time: 4 years Simple interest: $450.80 fill in the blank
March 7, 2011

chemistry
When 1.70 mol CO2 and 1.70 mol H2 are placed in a 0.850 L container at 395 C, the following equilibrium is achieved: CO2(g) + H2(g) = CO(g) + H2(g) If Kc = 0.802, what are the concentrations of each substance in the equilibrium mixture?
February 25, 2011

History
Which city-state was better: Sparta or Athens
February 17, 2011

History
During 400-600 B.C.
February 16, 2011

History
What were some pros and cons about the Athens, for men and women
February 16, 2011

English
between trips, down
February 16, 2011

English
do a common go between trip,do At this time, Do I suppose to put July 10 th, July 12th, August 2nd, and August 9th.
February 16, 2011

English
Please check for any errors and correct them for me. Enclosed is the information you requested concerning our float trips down the Colorado River in the Grand Canyon. All departure dates and prices for the various trips are listed in our booklet. At this time the trips leaving...
February 16, 2011

English
was to were
February 16, 2011

English
continue to continuing
February 16, 2011

English
Ok lol. As you know, According to our initial investigation,
February 16, 2011

ENGLISH
O ok I got you yes I understand. You are right about that
February 16, 2011

ENGLISH
I don't know it just seem like it should.
February 16, 2011

Chemistry
To an initially evacuated 50.0L container maintained at 155C were added 3.20g of gaseous xenon and 4.00g of gaseous fluorine. A spark was used to initiate reaction between xenon and fluorine, and gaseous xenon hexafluoride was the sole reaction product. What was the pressure ...
January 27, 2011

7th grade
i need help on probability in math
December 8, 2010

physics
A centrifuge in a medical laboratory rotates at an angular speed of 3500 rev/min. When switched off, it rotates through 54.0 revolutions before coming to rest. Find the constant angular acceleration of the centrifuge in rad/s^2.
November 28, 2010

healthcare mgt-college
You are a new administrator at a hospital, the icu & er are suffering a shortage of respiratory therapists, you need to gather information for a meeting with them, what information do you need before the meeting? develop a tactical plan, what are the major issues? how does it ...
November 15, 2010

Chemistry
How much vinegar at 5% acetic acid concentration would be required to neutralize 100mL of 0.01 M NaOH? (Assume a density of vinegar to be 1.01g/mL)
November 9, 2010

college
· Identify two different points of view for the topic from the list in Appendix B that you have chosen. Choose the point of view you will use in your paper and explain why you have chosen it.
November 9, 2010

Math
i am greater than 30 and less than 40. the sum of my digits is less than 5.
November 3, 2010

physic
if a tape is wound around a cylinder at a rate of 1 rad/s for a half hour, if each rotation deposits one layer of tape and if the final difference between inner ad outer radii of the winding in one cm, what is the thickness of the tape?
October 27, 2010

math
Jamal is fencing a rectangular field that measures 37 ft by 27 ft. How much fencing should he buy?
October 24, 2010

chemistry
A 2.50X102 g sample of an unknown hydrocarbon contains 3.28X101 g of hydrogen. How many moles of carbon does it contain?
October 20, 2010

chemistry
what is the empirical formula for a compound whose molecular formula is C2Cl6
October 16, 2010

math
total profit made by McDonald’s in 2002.
October 15, 2010

physics
If i have 3 different uncertainties how do i get the average uncertainty of the three? For example ±.3 , ±.2 , ±.3 how do i find the average uncertainty of the three?
October 12, 2010

9th grade
This is Geometry homework 7x+2y=10
October 12, 2010

allied health
following hipaa regulations
October 12, 2010

Physics
I really need help... You are on a treasure hunt and your map says "Walk due west for 52 paces, then walk 29.0° north of west for 39 paces, and finally walk due north for 25 paces." What is the magnitude of the component of your displacement in the following ...
October 8, 2010

physics
hey mimi what was your final answer? i have a similar problem and im trying to see if my answer is wrong or not.
October 6, 2010

AP English Lit.
So I'm doing an essay about the Mosque and being built near Ground Zero, but I have no idea on how to start my thesis. My opinion, to me, I don't really care because people are entitled to their opinion, which it should be built or not. Any ideas?
October 5, 2010

chemistry
How many mole of carbon are needed to react with 60 mol of sulferdioxide?
October 1, 2010

health
how do you distinguish between a management, non-training and training issue? What are some examples of each type of issue?
September 30, 2010

NewGeometry
Line segment XY has a midpoint of L. 1/3XY = 3. What is the midpoint of XY?
September 29, 2010

Chemistry
what molarity does a solution with 17.1 grams of sugar and 500 mL of distilled water have?
September 28, 2010

Geometry
midpoint of L. 1/3XY = 3. What is the midpiont of XY?
September 28, 2010

spanish
Hello, I am in spanish 2, and we are studing indirect/direct object pronouns and preterite tense. We were supposed to write a paragraph on what we did this weekend. I was wondering if someone could look over my paragraph and see if there are any errors. Thank you! Ú...
September 18, 2010

algebra
Solve: 2 - |1-x| < 1 thanks!
September 12, 2010

statistics
Given a data set with the mean = 44 and the standard deviation = 15, what is the value of the Third Quartile?
September 10, 2010

physics
Speedy Sue, driving at 30.0 m/s enters a one-lane tunnel. She then observes a slow-moving van 155m ahead traveling at 5.00 m/s. Sue applies her brakes but can accelerate only at -2.00m/s/s because the road is wet. Will there be a collision? If yes, determine how far into the ...
September 7, 2010

Chemistry
Thank you Dr. Bob. You were correct in your assumption. I had been staring at that problem for too long...It's very simple now that I see your solution. Thanks again for your help!
August 30, 2010

Chemistry
I need help with a concentration question. I need to know how to calculate the product with the higher concentration. $6.50 for 185 mL and the concentration of the active ingredient is 0.005% OR $7.00 for 165mL and the concentration of the active ingredient is 0.700%. I need ...
August 30, 2010

accounting
Write a 350- to 700-word summary indicating the ways that this memo should be changed based on its audience. In the summary, identify how and why the audience affects the style of communication. Include the following:
August 16, 2010

US101
Have you ever use mnemonics to remember something complicated? What way you might you use mnemonics to be a more effective college student and adult learner..
August 12, 2010

  1. Pages:
  2. <<Prev
  3. 1
  4. 2
  5. 3
  6. 4
  7. 5
  8. 6
  9. 7
  10. 8
  11. 9
  12. 10
  13. 11
  14. 12
  15. 13
  16. Next>>

Members