Wednesday
July 23, 2014

Posts by Lou


Total # Posts: 168

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

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

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

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?

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

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

math
solve for d if ddd base 5 = 124

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...

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 ...

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

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

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 subm...

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 co...

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 Fina...

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 Fina...

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 Fina...

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 Fina...

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?

Physics
a.) 25.6m/s

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 b...

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

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?

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

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

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??

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

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?

physics
Calculate the weight (in English units) of a 2300 kg tiger.

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

horizontal displacement physics
how do we find horizontal displacement in physics?

chemistry - crude product
WHAT IS THE CRUDE PRODUCT IN RECRYSTALLIZATION?

english-personal growth
what is a personal growth paper?

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?

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

I meant to say math
math subject

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?

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

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

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

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

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

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

mecs 101
How has Islamic law attempted to adapt to modernity?

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

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

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 ...

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

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

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)

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.

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 ...

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?

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

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

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?

math
5322.74

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: ...

math
how do you solve -4<2x-3<4

math
how do you solve -4<2x-3<4

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

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

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

math
factor (25-x^2)

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

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

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?

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

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

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

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 p...

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.

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.

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

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.

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

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?

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?

social studies (socrates)
Why were the four charges against Socrates false?

chem
How does a change in volume change the concentration?

chemistry
How are sugars stored in onions and potatoes?

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

childcare
what is the answer

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

calculus
How do I draw the derivative of a function

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

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 ...

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 :)

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

American History
what were the elements of urban liberalism?

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

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?

English-- Analogies
sharpness : blade

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...

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

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 ...

just curious
why is the equator hotter than the north and south poles?

Geography
how does modern technology help geographers?

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?

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?

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

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