Monday
October 20, 2014

Posts by karen


Total # Posts: 815

chemistry
according to american insurance companies a driver will travel 12,000miles in a single year.gasoline may be taken as primarily C8H18,octane, and the reaction with dioxygen is given below.the driver's vehicle gets 25.0miles per gallon.the density of octane is 0.703g/ml. ...
April 8, 2012

maths
If a van travels for a distance of 18 km at an average speed of 75 km/h and then for a distance of 63 km at an average speed of 90 km/h, what is the total time for the journey in minutes, to the nearest minute?
April 7, 2012

Math
The first lap of an auto race is 2000 meters. This 5% of the total race distance. What is the total distance?
April 5, 2012

math 11
oh sry i forgot to ask these questions.. to help you answer this one its a long one 1.calculate the final value after 10 years if you invest 5000.0 at 2.5% compounded annualy 2.Calculate the amount of interest earned in 10 years on 1000.00 invested at 3.00% per annum, ...
April 5, 2012

math 11
An investment earning simple interest rate of 1.10% per annum for a term of 5 years earned 82.50 in interest. What was the principal?
April 5, 2012

Philosophy
Why did Hobbes name his text Leviathan?
March 25, 2012

Math
How many faces vertices and edges does a cone have
March 18, 2012

math
Two representatives are chosen at random from a group of 100 students that has 50 girls and 50 boys. What is the probability that the representatives seledted are either both boys or both girls?
March 13, 2012

math
In a clinical trial, a drug used to reduce blood pressure caused side effects in 6% of the patients who took it. For a new rial, two patients were selected at random. Find the probability that both the patients had side effects.
March 10, 2012

math
The odds against pats winning the election are 6:7 with these odds, what is the probablity that pat will win the election.
March 10, 2012

math
In a clinical trial, a drug used to relieve pain caused side effects in 9% of the patients who took it. For a new trial, three patients were selected at random. Find the probability that none of those patients had side effects.
March 10, 2012

math
the probability of an event is 7/10. Find the odds in favor of this event occurring.
March 7, 2012

math
The odds against Pat winning the election are 5:9. With these odds, what is the probability that Pat will win the election?
March 7, 2012

6th grade math
not a cube, as they have not done cube roots yet. I know the answer, which would be 4x4x5, but looking for a pattern or easy way to explain it.
March 6, 2012

6th grade math
If the volume of a rectangular solid is 80 cu inches, what dimensions will give the least amount of surface area?
March 6, 2012

chem
calculate the standard enthalpy change for each of the following reactions. N2O4(g)+4H2(g)=N2(g)+4H2O(g)
March 4, 2012

principles of physics
the same and your tangential speed less.
March 2, 2012

Calculus AP
implicit differentiation Find the slope of the tangent line to the curve xy^3 + 2y - 0.76 =0 at the point (-3, o.7) I'm lost. so 3xy^2 * y' + 2y = 0 right?
March 1, 2012

chemistry
189g
February 29, 2012

chemistry
3.30 mL of vinegar needs 43.0 mL of 0.150 M NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.70 qt sample of this vinegar?
February 29, 2012

chemistry
A What mass of KCl is needed to precipitate the silver ions from 26.0 mL of 0.100 M AgNO3 solution?
February 29, 2012

math
If a dice is rolled 3 times, what is the probability of rolling a prime number, then a 2, and then a 5?
February 28, 2012

English
Do you capitalize mom in the phrase your mom?
February 27, 2012

English
As in the Temperature
February 27, 2012

ENGLISH-PLEASE HELP!
In Dante's inferno, why does Dante have to get rid of his feelings of sympathy and pity toward sin and sinners in order to grow?
February 26, 2012

Macroeconomic
Suppose we establish a $10,000 fine for water pollution. Would some companies still find that pollution was economical? Under what conditions?
February 23, 2012

math
There are nine customers waiting for their local SuperDuperMegaMart store to open on a big shopping day. In how many ways can the nine customers form a single line at the door? That is, how many different lines of nine people are possible?
February 20, 2012

Economics
Suppose George is making $18 an hour installing electronic chips in hand held computers. Would you offer to work for $8 an hour to get you the job? Why might a profit-maximizing employer turn down you offer?
February 18, 2012

Chemistry
37% HCl is 0.37g/g to prepare 100mL of 10g/L HCl solution you need 1g of HCl then the volume of 37% HCl is 1g/(0.37g/g x 1.19g/mL)=2.27mL
February 16, 2012

Psych-Cognition
What does the concept dualist metaphysics mean?
February 2, 2012

College Hca 210
Write a 350- to 700-word paper on one of the following laws: HIPAA (1996) or EMTALA (1986). Pretend you are a health care manager employed at a small community hospital responsible for educating your staff about HIPAA (1996) or EMTALA (1986). Include the following in your ...
January 30, 2012

Math- Alg 2
A colony of bacteria is growing exponentially according to the function below, where T is in hours. How many bacteria are there after 7 hours? B(T)= 4*e^(0.8)T
January 26, 2012

math
For 3 collections, the mode was 126 and the range is 26. What are the 2 possibilities for the number of items in each collection?
January 26, 2012

A&P
together leucocytes and platelets compromise ? percent of total blood volume
January 16, 2012

College: HCA 210
Complete the following Workforce Provider Overview Grid. Many areas within health care are options for career placement or advancement. Research different fields within the industry and fill in each box with detailed information about the clinical health care provider. For ...
January 15, 2012

Geometric Sequence
81 54
January 14, 2012

economics
When an economist says that a currency has become stronger, he or she means that a) it will buy less of foreign goods. b)it can be exchanged for more of a foreign currency. c)services, unlike goods, can be exported freely. d)there are very few things that the currency cannot ...
January 9, 2012

science
2 questions. What part of the cell contains chlorophyll? what do plants usually have one large one of and animals may not have any or have several smaller ones?
November 28, 2011

phi 103
avoid the argument
November 26, 2011

Soc 331
Discuss current trends affecting social welfare. Do modern trends favor the solution of social issues? What are the most effective social welfare organizations today in your opinion, and why? I think that modern trends do favor solution, but I'm not exactly sure how. i ...
November 16, 2011

chemistry
for the reaction S2F6 (g) 2SF2(g), the equilibrium concentrations are as follows: [S26]=0.000430M, [SF2]=2.08 M, [F2]=1.32M. the equilibrium constant is
November 13, 2011

statistics
a student took a 25 question true and false test answering the question randomly without reading them. If a score of 18 is correct is the minimum passing grade, how likely (calculate probability) is it that the random guesser will pass the test
November 10, 2011

chem 1
a NaOh solution has a concentration of about 0.11M.How many grams of KHP would have to be used to require NaOH solution to reach the endpoint
November 7, 2011

Math
Reasoning Janice said that if you cut a cube into two parts you form 2 smaller cubes. Ling said that 2 rectangular prisms are formed. Who is correct? Explain.
November 4, 2011

English
Yes, my examples for my sentences are in my answer to your previous question above.
November 1, 2011

English
Redundant is when two different words are used in a sentence but mean the same thing. ( I cannot think of a sentence for this one.) A parenthetical is an an add-on to a sentence but does not necessarily interrupt it. Is this a good example? California, to say the least, is a ...
November 1, 2011

English
Three sentences involving: 1. A completely correct simple sentence with an appositive in it about California. 2. A sentence with redundant language about California. 3. A sentence about California with a parenthetical element in it.
November 1, 2011

English
Using California as a topic, number and write one example of each of the following: 1. A completely correct simple sentence (see Grammar Glossary if you need to) with an appositive in it. 2. A sentence with redundant language. Type the redundant language in ALL-CAPS. 3. A ...
November 1, 2011

math
If you walk 6.2 miles in 2 hours- what is your average speed in meters per minutes? I just want to make sure that I am setting this up right... thank you.
October 26, 2011

chemistry
Oh I am sorry, the distance between mars and earth is measured in kilometers.
October 26, 2011

chemistry
how long would it take a radio wave with a frequency of 7.25 x 10to the 5th to travel from Mars to earth if the distance is approx. 8.0 x 10 to the 7th?
October 26, 2011

Economics
assume that gross national debt is equal to $3million and the federal government then runs a deficit of $300 billion. What is the new level of gross national debt
October 26, 2011

physics
A centrifuge is revolving at the rate 10,000rpm. The radius of revolution for a 0.100-g particle being separated is 8.00 cm. a) Identify the given quantities with their symbols and units. b) What is the angular speed in radians per second? c) What is the linear speed in meters...
October 25, 2011

english
a common fary tale motif found in the white snake is: a)references to the bible b)items or events occurring in threes c)references to real people or events d)the dialect of the charactwers
October 19, 2011

algebra 1
n-12 =11 n-12+12=11+12 n=23
October 19, 2011

Sociology
What does social cultural context mean? and what does it mean to look at something structually?
October 16, 2011

geometry
show that points A= (10,12,13), B=(13,14,14), and C=(18,18,16) are not collinear
October 15, 2011

statistics
A study of graduates average grades and degrees showed the following results: B.S. Degrees, 15 graduates averaged Grade A, 8 graduates averaged Grade B, and 5 graduates averaged grade C. Graduates who had a B.A. Degree, 8 averaged grade A, 12 averaged grade B, and 7 averaged ...
October 15, 2011

physics
A satellite orbits Earth once per day. From the reference frame of the Moon, which orbits Earth once about every 27 days, what is its motion?
October 14, 2011

math
3 pounds
October 12, 2011

math
express 55 minutes as a frcation of 1 1/3 hours
October 5, 2011

algebra
11 divided by 12 +b= 5/6
September 30, 2011

algebra
if a)=0.65 and b)=1.28 and c)=-5/2,evaluate -a-(-b)+c
September 30, 2011

english
in the book the diary of Anne Frank the diary provides anne with a means of working through her internal conflicts. provide two examples of personal conflicts Anne is struggling with
September 27, 2011

English
the adjective would be yellow,a word to define a noun
September 27, 2011

physics help please
An airplane that can fly at 300 km/hr is flying at 210 when it is hit by a wind of 125 km/hr at 110. What is the new velocity of the plan?
September 26, 2011

Physics help ASAP please
A boat needs to travel straight across a river. The current is 10 km/hr. The boat can travel at 16 km/hr. What is the velocity of the boat relative to the bank?
September 26, 2011

Physics help ASAP please
An airplane is flying south at 500 km/hr and is being blown by a crosswind of 75 km/hr east. What is the resultant velocity of the airplane?
September 26, 2011

literature
how does the role of the supernatural differ in the stories of Echo and Narcissus and Deadalus and Icarus?
September 26, 2011

Physics
You carry a 20 n box 5 m horizontally across a room. The work you do is? Is 4 J correct?
September 21, 2011

Statistics
The lifetime of television produced by the Hishobi Company are normally distributed with a mean of 75 months and a standard deviation of 8 months. If the manufacture wants to have to replace only 1% of its televisions, what should its warranty be?
September 16, 2011

trig
find the 5 trig ratios when sin theta = -5/13 and lies in quadrant 3
September 14, 2011

MATH
what are the rules to multiplication with negative numbers and positive numbers?
September 14, 2011

chemistry
how many molecules of O2 may be produced from 50g of KClO3? the formula is 2KClO3->2KCl+3O3
September 13, 2011

chemistry
how many grams of O2 may be produced from 50g of KClO3?
September 13, 2011

Whatzit puzzle
That is the way the puzzle is written.
September 9, 2011

Whatzit puzzle
more it it thani
September 9, 2011

Chemistry
Nuclei with the same number of neutrons but different mass numbers are called isotones. Write the symbols of four isotones of 236Th
September 7, 2011

College Math
Ed Moura has $29,000 invested in stocks paying 5%. How much additional money should he invest in certificates of deposit paying 2% so that the average return on the two investments is 3%?
September 1, 2011

STATISTICS
WHAT PERCENTAGE OF AFRICAN AMERICAN ARE FEMALE
August 24, 2011

math
a pet shop owner had an equal number of hamster and puppies for sale. the hamster were put equally int o 4 cages and the puppies were put equally into 12 cages. at the end of the day, he had sold 3 cages of hamsters and 6 cages of puppies. if the total number of animals sold ...
August 24, 2011

math
an aquarium had 50 goldfish and angel fish. After 2/5 of the goldfish and 1/2 the angel were sold, there were 27 goldfish and angel fish left. What was the ratio of the goldfish to the angel fish after the sale?
August 24, 2011

math
Tommy, Shawn, and ricky had a total of 192 picture cards. In a game, Tommy lost some picture cards to Shawn and Shawn's picture cards doubled. Shawn lost some picture cards to ricky and ricky's picture cards doubled. Then they each had the same number of picture cards ...
August 24, 2011

Literacy 2
You need to recheck these bc at least 4 are incorrect. I just took this exam.
August 23, 2011

Math: Inequalities
A doughnut shop at a shopping mall sells a dozen doughnuts for $2.95. Beyond the fixed costs of $150 per day, it costs $1.45 for enough materials and labor to produce each dozen doughnuts. If the daily profit varies between $50 and $200, between what levels (in dozens) do the ...
August 9, 2011

ECE
At which grade level is it most appropriate for children to group by more than one attribute? A. Primary B. Kindergarten C.Four years old D.Preschool
August 8, 2011

trigonometry
A ladder 6.4 meters long leans agant the wall of an apartment house forming an angle of 53%20% with the ground. How high up the wall does it reach?
August 7, 2011

Math
Anyone help me?? :) How to solve: 5x2 = -(19/2x-1) and 2x2 + 45/2x - 18 = 0 With full solutions? Thank you :)
July 25, 2011

social studies
How do the similar cultural and economic environment of the united states and canada help to keep people and goods passing easily from one country to the other?
July 23, 2011

world history
following world war 2 what factors led to Japan's economic success? a)the adoption of eastern economic philosophy that emphasized supply and demand economy. b)the concentration on the production of high-quality agricultural products. c)efficient, modern factories,adapted ...
July 19, 2011

world history
which of the following was an effect of militarism in europe in the late 1800s? nations made political and military alliances. b)strong governments developed. c)nations made economic alliances. d)political tension between nations was reduced.
July 19, 2011

solving rational equations
4-a-5/a+5=a^2-15/a+5
July 9, 2011

Math
Thanks that is what I thought but there was no time given
July 5, 2011

Math
I bought a stock at $16.50 and sold it at $19. What was the rate of change?
July 5, 2011

poetry
What is performative aspect of a poem
June 27, 2011

composition and communication1
The WritePointSM report begins with the following statement: “Welcome to WritePointSM, the automated review system that recognizes errors most commonly made by university students in academic essays.”
June 27, 2011

Physics
A 0.200-m uniform bar has a mass of 0.750 kg and is released from rest in the vertical position, as the drawing indicates. The spring is initially unstrained and has a spring constant of k = 25.0 N/m. Find the tangential speed with which end A strikes the horizontal surface.
June 9, 2011

MATH
Interest = principal times rate times time. Simple interest multiple all together 31.5.
June 4, 2011

Records Management
I am having a hard time understanding how to arrange these numbers and I have to turn the assignment in tomorrow. Any help would be appreciated. 1. arrange the numbers in terminal digit order. 2. arrange the numbers in middle digit order. 3. arrange the numbers in consecutive ...
June 4, 2011

businesscommunication
I took a speech class last quarter and the focus was on informative speeches and preparing outlines. 1. Introduction - the topic and main point of the message. Can be done with a thesis statement. An overview of what will be talked about. (five to eight sentences for the ...
June 4, 2011

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