Wednesday
October 1, 2014

Posts by Lou


Total # Posts: 167

biology
How do changes in the nucleotide sequence lead to mutations and how could this affect the primary structure of proteins?
September 18, 2014

statistics
construct a 95% confidence interval estimate for the population mean MPG of 2010 family sedans, assuming a normal distribution.
June 27, 2014

math
Find the maturity value on a loan of 10,500 @ 8 1/2% interest for 18 years using the MV=P+I
May 6, 2014

Chemistry
If a plant has 88.0 g carbon dioxide and 64.0g water available for photosynthesis determine: a the limiting reactant b. the excess reactant and the mass in excess c. the mass of glucose produced
April 29, 2014

physics
a great amount of water vapor changes phase to become liquid water droplets in the clouds that form a thunder storm. Does this phase change release or absorb energy?
April 23, 2014

physics
explain why we sweat when it is hot? How does it help us? In terms of heat and temperature what happens
April 23, 2014

math
Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -2x2 + 2x + 2.
January 31, 2014

math
solve for d if ddd base 5 = 124
January 30, 2014

Marketing
Are investment spending market tests a good strategy or a waste of time and overly cautious? I'm working on a case study and I'm having trouble picking a side to argue. The instructor wants us to decide how promotion money should be allocated in the case. The full case...
November 18, 2013

marketing
I'm working on a case study and I'm having trouble picking a side to argue. The question is, Is the investment spending market test a good strategy or a waste of time and overly cautious? The instructor wants us to decide how promotion money should be allocated in the ...
November 18, 2013

electronics technician
21. After the third time constant, what is the current in an inductor if the steady state circuit current is 10 amps?
June 18, 2013

algebra
how do i figure: (-12a^2b^6)^3 over (9a^3b^9)^3
May 6, 2013

business
Late payment of medical claims can add to the cost of health care. An article (M. Freudenheim, “The Check Is Not in the Mail,” The New York Times, May 25, 2006, pp. C1, C6) reported that for one insurance company, 85.1% of the claims were paid in full when first ...
January 31, 2013

statistics
a. Compute the mean, median, and mode. b. Compute the variance, standard deviation, range, coefficient of variation, and Z scores. Are there any outliers? Explain. c. Are the data skewed? If so, how? d. Based on the results of (a) through (c), what conclusions can you reach ...
December 23, 2012

business
1.21 Three professors at Northern Kentucky University compared two different approaches to teaching courses in the school of business (M. W. Ford, D. W. Kent, and S. Devoto, “Learning from the Pros: Influence of Web-Based Expert Commentary on Vicarious Learning about ...
December 16, 2012

business
1.21 Three professors at Northern Kentucky University compared two different approaches to teaching courses in the school of business (M. W. Ford, D. W. Kent, and S. Devoto, “Learning from the Pros: Influence of Web-Based Expert Commentary on Vicarious Learning about ...
December 15, 2012

business
1.21 Three professors at Northern Kentucky University compared two different approaches to teaching courses in the school of business (M. W. Ford, D. W. Kent, and S. Devoto, “Learning from the Pros: Influence of Web-Based Expert Commentary on Vicarious Learning about ...
December 15, 2012

simple interest
if i deposit 3,500 dollars at and intrest rate of 71/2% per year for 5 years what would my interest amount be?
November 13, 2012

Physics
a.) 25.6m/s
September 17, 2012

macroeconomics
Referring to the table in question 10, suppose improvement occurs in the technology of producing forklifts but not in the technology of producing automobiles. Draw the new production possibilities curve. Now assume that a technological advance occurs in producing automobiles ...
September 15, 2012

ENGLISH check
J-Rob is right. Answers are: 1.B 2.D 3.A 4.A 5.B
September 6, 2012

Honors Chemistry
An aqueous solution of NaCl has a concentration of .500 M. 35.0 mL of this solution is allowed to evaporate to a volume of 20.0 mL. a) Is the solution more concentrated or more dilute afterwards? b) What is the new concentration of the solution?
May 4, 2012

Theory
If an experiment doesn't agree with the the theory, then this means that the theory is incorrect? please give explain why or why not
April 25, 2012

Socials
Oops, sorry. This was on the discussion of Louis Riel's conviction of high treason.
March 25, 2012

Socials
I have no idea how to answer this. Write a paragraph from Macdonald's point of view defending the decision you have made. Keep in mind your desire to look good politically and personally in your quest to get re-elected. What decision did Macdonald make??
March 25, 2012

Math
7- quarters; quarters and dimes; quarters, dimes, and nickels; quarters, dimes, nickels, and pennies; quarters and nickels; quarters, nickels, and pennies; quarters, dimes, and pennies
March 20, 2012

organic chem
when di-n butyl ether and hot concentrated naoh react----> nor rxn .. why? when di n butyl ether reacts with na metal---> nor reaction .. why?
March 11, 2012

physics
Calculate the weight (in English units) of a 2300 kg tiger.
March 6, 2012

gender roles
what are characteristics and behaviors that are associated with being male and female in or society?
February 25, 2012

horizontal displacement physics
how do we find horizontal displacement in physics?
February 22, 2012

chemistry - crude product
WHAT IS THE CRUDE PRODUCT IN RECRYSTALLIZATION?
February 20, 2012

english-personal growth
what is a personal growth paper?
February 14, 2012

chem (significant figures)
what are the errors in the measured values g=9.910 m/s^2 amd 9.805? true value 9.797 for 9.910 i got 0.113 and for 9.805 i got 0.008. i know i need for significant figures but i got three in my answer. so what do i do?
February 7, 2012

math(significant figures)
A pipe is measured once with a steel tape with markings every .1mm.The two ends of the pipe line up with the 0 and 40-m marks onthe tape. How should this datum be recorded using theappropriate number of significant figures? exolain how you figured it out
February 1, 2012

I meant to say math
math subject
January 31, 2012

chem
the RDA of the amino acid lysine is 12 mg per kg of body weight. How many grams per day should a 77.0 kg adult receive?
January 31, 2012

ochem
In a sn2 reaction why do we need sp3 hybrid orbital and not sp2 for the substrate
January 29, 2012

history
What are three myths about the New World and the Indians (Virgin land, inferior, Noble savage)
January 22, 2012

Math Finance
joan wants to start an IRA that will have $250,000 in it when she retires in 18 years. How much should she invest nnually in her IRA to do this if the interest is 4% compounded annually round to the nearest cent
January 2, 2012

mecs101
discuss a modern middle eastern country's attempt to either codify or replace shariah law.
November 16, 2011

middle east culture
what are some of the different ways that the shariah can be interpreted and applied to modern society?
November 16, 2011

mecs
compare the formation of Islamic law to what you know of development of Western legal sytems?
November 16, 2011

mecs 101
How has Islamic law attempted to adapt to modernity?
November 15, 2011

basic chemistry
a substance that cannot be broken down into susbtances by ordinary chemical means is
November 8, 2011

chem
why doesanhydrous hydrogen bromide add to 1-pentene to afford a racemic mixture of. 2-bromopentane, and not 1-bromopentane.
October 31, 2011

Math
The market trades in three fixed-income securities: A, B, and C. Security A is a 2-year bond paying 40 at date 1 and 80 at date 2. Security B is a 1-year bond paying 50 at date 1. Security C pays 30 at date 1 and 40 at date 2. Prices are pa=100, pb=45 and pc=62. Determine the ...
October 28, 2011

chem
Does anyone know what graph you would obtain if the fractional distillation had been a complete separation of pure toluene or pure cyclohexane?
October 6, 2011

physics
what is the average velocity of a vehicle that uniformly accelerates from rest to 38 fps?
September 27, 2011

Math
A plumber makes $4.50 per hour more than his apprentice. During an 8-hour day, their combined earnings total $372. How much does each make per hour? (hint: if you decide to use cents instead of dollars,then use 450 cents per hour and 37200 cents total earnings)
September 19, 2011

calculus
A bicyclist is riding on a path modeled by the function f(x) = 0.03x, where x and f(x) are measured in miles. Find the rate of change of elevation when x = 3.
September 15, 2011

Math
For this problem, I need help creating a chart for this: Brian O'Reily earns twice as much each week as a tutor than he does pumping gas. His total weekly wages are $150 more than that of his younger sister. She earns one quarter as much as Brian does as a tutor. How much ...
September 14, 2011

Math
Brian O'Reily earns twice as much each week as a tutor than he does pumping gas. His total weekly wages are $150 more than that of his younger sister. She earns one quarter as much as Brian does as a tutor. How much does Brian earn as a tutor?
September 14, 2011

Algebra
The difference of two integers is 9. Five times the smaller is 7 more than three times the larger. Find the numbers.
September 13, 2011

Calculus
Find the distance traveled in 45 seconds by an object traveling at a velocity of v(t) = 20 + 2cos(t) feet per second.
September 12, 2011

US/ 101
Have you ever used mnemonics to remember something complicated? If so, describe the techniques you have used. What ways might you use mnemonics to be a more effective college student and adult learner?
August 14, 2011

math
5322.74
July 18, 2011

math
Water is flowing at a rate of 10 m3/s into the cylindrical tank shown below. a) Find the volume V of the water as a function of the water level h. b) Find h as a function of the time t during which water has been flowing into the tank. height of cylinder: 80m height of water...
July 18, 2011

math
how do you solve -4<2x-3<4
June 14, 2011

math
how do you solve -4<2x-3<4
June 14, 2011

math
actually i graphed it and theyre -4,0,and 4 but i dont know how to show my work
June 13, 2011

math
find x intercepts y=x(sqrt16-x^2) all real numbers?
June 13, 2011

math
why is it not -(x-5)(x+5) wouldnt you have to factor out a negative first so the x^2 isnt negative?
June 12, 2011

math
factor (25-x^2)
June 12, 2011

Chem
A) Calculate the pH of a buffer system that is 0.06 M HNO2 and 0.160 M NaNO2 B) What is the pH after 2.00 M NaOH are added to 1.00 L of this buffer I can do part A but I don't know how to part B
May 14, 2011

Chem
So Cu--> Cu2+ +2e- is losing electrons, right? Because its becoming positive
May 13, 2011

Chem
For this equation 2 Ag+ (aq) + Cu(s) <--> Cu2+ (aq) + 2 Ag(s) Which occurs at the anode? A. Cu --> Cu2+ + 2e– B. Cu2+ + 2e– --> Cu C. Ag+ + e– -->Ag D. Ag --> Ag+ + e– A, right because it's oxidation?
May 13, 2011

Chemistry
Suppose you had an unknown solution that contained either dissolved NaCL, or NaNO3. You added AgNO3 to the unknown solution and observed that no solid forms. What can be concluded about the unknown solution? (use the solubility rules
April 25, 2011

Chemistry
Suppose you had an unknown solution that contained either dissolved NaCL, or NaNO3. You added AgNO3 to the unknown solution and observed that no solid forms. What can be concluded about the unknown solution? (use the solubility rules
April 25, 2011

Chemistry
Suppose you tired to carry out a double-replacement reaction by mixing together equal volumes if a solution that contained dissolved NaF and a solution NaCl. Would you expect a reaction, if Si write the balanced chemical equation
April 25, 2011

center of mass
3 point mass of 4g placed at x=1,3,-6. where should a point fourth mass of 4 gm be placed to make the center of the mass at the orgin? this what i got : -24+4+12+4x/16=-8+4x/16. this what i did but i didn't get the right answer(which is 2) can someone tell me what is the ...
March 27, 2011

spanish
i need to give commands to fix the following sentences: 1.El perro tiene hambre 2.hay mucha basura en la cocina 3.los platos,la alformba y el coche estan sucios,yhay polvo en las mesas.
March 8, 2011

bio (plasma membrane)
I understand that the plasma membrane is composed of a polar head and non polar tail. I read in my textbook that small non-polar molecules readily pass through and that polar and non-polar repel. so how do non-polar substance pass the the polar head? please explain.
February 19, 2011

Math
What is the surface area of a right circular cylinder with base circle of radius of 5m and height of the cylinder 10m?
January 17, 2011

math
the perimeter of isosceles triangle is 70 d. of the length of a leg of the triangle is 5 dm less than twice the lenth of the base, find the lengths of the sides of the triangle.
January 15, 2011

organic chem
how do i find the general formulas for diyne AL ( al represents aldehyde) diene al eneyneol
December 14, 2010

Physics
It has been suggested that rotating cylinders about 10 mi long and 5.4 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acceleration?
December 2, 2010

bilogy(genetics
given the following genotypes GgWwTt and GgWWtt. what is the probability of producing an offspring with the following genotype? How do i solve this problem?
November 5, 2010

social studies (socrates)
Why were the four charges against Socrates false?
October 10, 2010

chem
How does a change in volume change the concentration?
September 30, 2010

chemistry
How are sugars stored in onions and potatoes?
September 24, 2010

chem( buffers)
Does water have a high buffering capacity? Why is it important to know it buffering capacity of water?
August 28, 2010

childcare
what is the answer
August 18, 2010

childcare
a teacher request that a child use a small stepladder to reach a book on a shelf. She is helping the child develop?
August 18, 2010

calculus
How do I draw the derivative of a function
July 10, 2010

chemistry
Of the metals Pb, Mg, Au, and Na, which will not spontaneously donate electrons to copper in solution?
June 14, 2010

math PLEASE URGENT
if normal blood cholestrol level is 5.8 mM and a treatment caused a drop of 1.0 mM with a standard deviation of the difference of 2.0 mM what is the minimum number of individuals that should be used in the drug trial to determine whether or not it is effective i know you have ...
June 1, 2010

relgious education
For my RE homework I need to write an essay about the differences, similarities between Christianity and Judaism. the teaching and beliefs of the two religions. anyone know of any sites which explain it simply. thanks any help would be great :)
May 15, 2010

chem
How do I calculate ratio of volume of base to volume of acid . Ex) phenolphthalein: Acid:20mL Base 30mL
April 27, 2010

American History
what were the elements of urban liberalism?
April 11, 2010

Chemistry
Write a balanced equation: Aluminum reacts with aqueous hydrochloric acid to form hydrogen gas and aqueous aluminum chloride. I think: Al+HCl(aq)-->H(g)AlCl(aq) But I don't really know if I am doing it right or not
April 5, 2010

English
Is this sentence already correct? No we have not heard from Mrs. Whittaker since she moved to Iowa City. I think it should be No, we have not heard from Mrs. Whittaker since she moved to Iowa City. I don't think that you need one before the "since". Do you?
April 4, 2010

English-- Analogies
sharpness : blade
April 4, 2010

English-- Analogies
So I think that 1. is Perdition : Salvation because that's an opposite and perfunctory and punctilious are opposites. Perspicacity is keenness of judgement so I suppose perspicacity relates then to the mind for this is where perspicacity is developed. This doesn't seem...
April 4, 2010

English-- Analogies
1. perfunctory : Punctilious :: A. kindly : gently B. avoid : detect C. practical : Feasible D. Perdition : salvation 2. Perspicacity : Mind :: A. reason : excuse B. attorney : trial C. sharpness : blade D. rainstorm : spring
April 4, 2010

com 150
• View the Vacuum Sales digital story located on the Materials tab of your student Web site for Week Six. Of the two arguments provided in the digital story, which is valid and which is sound? When you are building an argument for an issue that is significant to you, do ...
March 2, 2010

just curious
why is the equator hotter than the north and south poles?
February 7, 2010

Geography
how does modern technology help geographers?
January 13, 2010

algebra
Paula leaves home driving 40 miles/hr. One hour later Dan leaves home driving in the same direction at the rate of 50 miles/hr. How long will it take dan to catch up with Paula?
January 6, 2010

science ( soda can)
Why does a can of soda left in the car on a hot summer day explode? Why does a can of soda left in the freezer eplode?
December 4, 2009

math
how do you calculate the simple interest on a loan of $18,500 at 11% INTEREST FOR 18 MONTHS?
November 16, 2009

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