Monday

September 22, 2014

September 22, 2014

Total # Posts: 2,005

**Stat**

the mean of adult men is 172 pounds with a standard deviation of 29 pounds. ask 20 men thier weight and use excel to calculate the mean. test the hypothesis that the mean is not 172 pounds at the .10 significance level. and how many men should be sampled if you want to be 98% ...
*April 21, 2011*

**Math**

The rate of change of sales volume is the derivative of S(t) S'(t) = dS/dt = 20,000 * -0.6 * e^(-0.6*t) Let t = 1, and find the value of S'(1)
*April 19, 2011*

**statistics**

Develop the estimated regression equation to predict the city score, given the Recession Resistance rating alone
*April 18, 2011*

**Chemistry**

If 100 grams of NI3 is detonated, calculate the Gram of N2 and I2 formed.
*April 13, 2011*

**Chemistry**

What is the mass of S2Cl2 if 342 grams of S8 is reacted with an excess of Cl2?
*April 13, 2011*

**Math**

This seems like an economics question to me.. If you want to find the value for the future? You do $2000 x (1.09)^ 7 put this into your calculator exactly as I have it here to get your answer.
*April 13, 2011*

**Economics**

In the long run, what effect will a decrease in aggregate demand have on real output?
*April 13, 2011*

**Statistics 103**

This is one of the questions that is asked in the back of the fifth edition of elementary statistics book. I am not sure of the answer, the number of the problem is an even number. Meaning that I cannot see the the answer in the back of the book:( So I was wondering if anyone ...
*April 13, 2011*

**Statistics 103**

Why do most of the sample means differ somewhat from the population mean? What is this difference called?
*April 13, 2011*

**Statistic 103**

The average teachers salary in Connecticut( ranked first among states) is $57,337. suppose that the distribution of salaries is normal with a standard deviation of $7500. What is the probability that a randomaly selected teacher makes less than $52,000 per year?
*April 13, 2011*

**Statistics**

The number of surgeries 50 randomly selected studetns have had. Would that be qualitative or quantitative?
*April 12, 2011*

**home economics**

what are 3 benifits of food imports into ireland?
*April 6, 2011*

**English**

I recently wrote an essay in English class and when I got it bcak I noticed that some of the words have agr or agr. over them. For example, most of them are over the words: their and they. I know it sounds confusikng, but if anyone can help, please do so. Thanks.
*April 5, 2011*

**physics**

a) If a photon and an electron each have the same energy of 20.0 eV, find the wavelength of each. b) If a photon and an electron each have the same wavelength of 250 nm, find the energy of each. c) You want to study an organic molecule that is about 250 nm long using either a ...
*April 5, 2011*

**English 102**

you didn't have to be soo judgemetel.
*April 4, 2011*

**English 102**

actually i am in my 2nd year of college. and yes my teahcer is. I guess you don't believe in God. Well Shame on you. Here's what the sybullos says. since u want to be misjudgemetel. 2. CheckPoint: Introduction and Conclusion • Consider the components of an ...
*April 4, 2011*

**English 102**

The only I had to do was create a Introduction and Conclusion so i can't give u the rest of the paper. when thats not even nearly done.
*April 4, 2011*

**English 102**

Can some one read this and give some feedback please! Introduction Is same-sex marriage going to create issues on our society? Same-sex marriages will most likely to have issue in many political campaigns also churches and Christians everywhere will be confronted by same-sex ...
*April 4, 2011*

**English**

Also, what font size does a resume have to be?
*April 4, 2011*

**English**

Do you necessarily need references for a resume?
*April 4, 2011*

**English**

this is what i have done so far, but i need help with the rest. The type of graphs that could be used for the topic same-sex marriage, such as graphing out how many same-sex couples exist in the state of region. Than comparing the number of licensed married same-sex couples ...
*April 3, 2011*

**college chemistry**

When ammonium carbonate decomposes, what would happen to a glowing splint in the presence of the gases that are evolved. Explain
*April 3, 2011*

**spanish**

how to make a sentence in spanish and english in these words.La hija/tener hambre
*April 2, 2011*

**spanish**

What does primos mean and what is the correct thing to put in front?un,una,une,unas,one,unos
*April 2, 2011*

**english**

Not sure how to do this?? can anyone help? Incorporating Statistics, Graphs, and Illustrations o the different types of statistics, graphs, and illustrations that are appropriate for your topic. o Where do these visuals fit most effectively into your paper? Explain how these ...
*April 1, 2011*

**physics**

.131
*March 31, 2011*

**physics**

In the Atwood's machine of Figure 8-23, the two masses shown are initially at rest at the same height. After they are released, the large mass, m2, falls through a height h and hits the floor, and the small mass, m1, rises through a height h. The mass m2 remains at rest ...
*March 31, 2011*

**English 102**

Since u helped me out so well with the other assigament, can you help me with this one. I could not send you the rest of my outline, because it was over due. I didn't want to be anymore late on it. i guess I shouldn't wait untill the last mintue. Here's the new ...
*March 31, 2011*

**English 102**

i am working on it
*March 31, 2011*

**English 102**

I needed 2 more subtopics Subtopic 2b God makes it clear in the Bible. Subtopc 3B i am thinking of this one. i wanted to see if that one was ok.
*March 31, 2011*

**English 102**

I have read and I have understood, but I will re-read everything again. I did revisie the sentnece.
*March 31, 2011*

**English 102**

Subtopic 1- Will same-sex marriage be a postive influence on our society. Subtopic 2 - many people fear that history tends to repeat itself. subtopic 3- cheuches fear that same-marraige will detory what Gods intends are. My thesis statment. Same-sex marriage should be not be ...
*March 31, 2011*

**English 102**

I was think that the subtopics i would use are First of all, will same-sex marriage be a positive influence on our society as whole? Many people believe it will not. Almost every major religion in the world bans homosexuality. Our representatives are influenced by a strong ...
*March 31, 2011*

**English 102**

My thesis statement is Even though some people think that same--sex marriage should be legal, Same-sex marriage should not be legal. Because Homosexuality is against Gods will and God says man should be with a women, women should be with man.
*March 31, 2011*

**English 102**

I am not asking anyone to do my homework, i am just asking for some gudies. I need to do a full-sentence outline on same-sex marriage. i have some ideas i would just like some adivce. I. Main point 1 in a complete sentence. What Christians are saying about same-sex marriage? A...
*March 31, 2011*

**physics**

an insulated circular ring of diameter 6.50cm carries a 12.0 A current and is tangent to a very long, straight insulated wire carrying 10.0 A of current. find the magnitude and direction of the magnetic field at the center of the ring due to this combination of wires.
*March 30, 2011*

**chemistry **

5.25 g C4H6O3 0.0514 mol C2H4O2
*March 29, 2011*

**Physics**

The linear absorption coefficient for 0.05 nm x-rays in lead and in iron are respectively, 5.8x10(4) /m and 1.1x10 (4) /m. How thick should an iron shield be in order to provide the same protection from these x-rays as 10 nm of lead?
*March 22, 2011*

**Physics**

X-rays with an energy of 300 keV undergo Compton scattering from a target. If the scattered x-ray are directed at 30 degrees relative to the incident rays, find a)The Compton shift at this angle b) The energy of the scattered x-ray c)The energy of the recoiling electron
*March 22, 2011*

**Math**

What is the square root of 64?
*March 21, 2011*

**Physics**

A uniform solid disk of radius 1.7 m and mass 81.3 kg is free to rotate on a frictionless pivot through a point on its rim. If the disk is released from rest in the position shown by the solid circle, what is the speed of its center of mass when the disk reaches the position ...
*March 19, 2011*

**Improving Your Writing**

BACKGROUND: Ten years ago, I started working as a clerk for DMD Medical Supplies. Six months ago, Liz, the human resources director, promoted me to office manager. I manage two employees: Jack and Ruth. My office provides secretarial support for the four members of the ...
*March 16, 2011*

**maths**

this is pretty easy, I'm sure you will be able to figure it out. Use your division.
*March 16, 2011*

**English**

My 1st grade son needs to write a paragraph but is having a very hard time grasping the concept. How can I help him with this? He doesn't under stand that the paragraph has to blend/flow and be about the same topic all the way through. What shoudl I do?
*March 15, 2011*

**Math**

50%
*March 13, 2011*

**Math**

What are 5 names for 1/2?
*March 13, 2011*

**Physics!!!**

A rod of length 1m lies in the lab frame making angle θ=30 with the x-axis. Find the length and the angle it makes with the x’-axis as seen by an observer moving at u=0.8c along the y-direction.
*March 13, 2011*

**chemistry**

A certain volume of a gas at 298k is heated such that its volume and pressure are now four times thier original value. What is the new temperature?
*March 10, 2011*

**math**

a college conducted a survey and determined that 68% of the students attending the college owned a car.what is the ratio of the number of students who own cars to total numbers of students
*March 9, 2011*

**2nd grade/math**

How do you find the perimeter of a letter, example I, U, and J? The area for the I is 9 square cm. Do you still count all the sides or what? Any help would be appreciated!
*March 8, 2011*

**geometry**

The angle of depression from the top of a 320 foot office building to the top of a 200 foot office building is 55degrees. How far apart are the two buildings?
*March 7, 2011*

**Maths**

Basically there is this graph with the equations: x = cos t + 2 sin t and y = sin 2t (o<t<pi) I am asked to find the x-co-ordinates of A, B and D. All these points cross the x-axis, therefore y=0. How do I go about this?
*March 6, 2011*

**Trigonometry**

use the appropriate trig identity (sum and difference, half angle, double angle) to find the exact value. 1)cos 255 degrees 2) sin 165 degrees 3) tan 285 degrees
*March 3, 2011*

**Algebra**

d must be divisible by 3, it must be 0,3,6,9 the sum is 18
*February 27, 2011*

**medical office bookkeeping**

I need to outline a step process to prepare a deposit from multiple payers. can you help?
*February 25, 2011*

**British Literature**

My class is reading from the Canterbury Tales from the prologue. I have to read the Manciple part. Our teacher wants us to write a paragraph about our character. I'm not sure what she's askiing for. I guess I have to research the manciples appearance, personality, and ...
*February 17, 2011*

**Biomechanics**

If John was pushing a 300 kg desk across the floor with a constant acceleration of 3.5 m/s squared, how much force would he have to apply to the desk to maintain the acceleration, considering the coefficient of kinetic friction is 0.60?
*February 17, 2011*

**Vocabulary- check my answer**

Thank you! I really appreciate you letting me know that I thought correctly. It just really makes me feel good. :) Have a nice day!
*February 11, 2011*

**Vocabulary- check my answer**

The shirt that Jack stole was worth just three dollars, so he was only charged with a _________. a) ruffian b)misdemeanor.... Is this right??? c)extortion d)condemnation PLEASE HELP
*February 11, 2011*

**Vocabulary- check my answer**

The shirt that Jack stole was worth just three dollars, so he was only charged with a _________.
*February 11, 2011*

**History**

So, this isn't a homework assignment, but I really would like to know about US containment policy. Can someone tell me without sending me to links to research, please? I don't want to sound lazy, but because it isn't a homework assignment, I really don't want ...
*February 10, 2011*

**PHYSICS**

The value of a real-world resistor ______ changes with significant time as the resistor conducts a current. never rarely sometimes usually I think either never or rarely, but I'm not sure. When you unplug the resistor, the Ammeter and Voltmeter reading goes down to 0 ...
*February 9, 2011*

**Phys**

The value of a real-world resistor ______ changes with significant time as the resistor conducts a current. never rarely sometimes usually I think either never or rarely, but I'm not sure. When you unplug the resistor, the Ammeter and Voltmeter reading goes down to 0 ...
*February 9, 2011*

**Physics**

The value of a real-world resistor ______ changes with significant time as the resistor conducts a current. never rarely sometimes usually
*February 9, 2011*

**physics**

An archer pulls her bow string back 0.400 m by exerting a force that increases uniformly from zero to 240 N. (a) What is the equivalent spring constant of the bow? 1 N/m (b) How much work does the archer do in pulling the bow? 2 J THANKS!
*February 9, 2011*

**CHEMISTRY **

For the following reaction, what mass of SIC is made from120.2g of SIO2 and 120g of C? SiO2(s) + 3C(s) ---SiC(s) +2CO(g)
*February 8, 2011*

**CHEMISTRY **

For the following reaction, what mass of SIC is made from120.2g of SIO2 and 120g of C? SiO2(s) + 3C(s) ---SiC(s) +2CO(g)
*February 8, 2011*

**chemistry **

Calculate the mass of water produced by 64 grams of CH4 CH4(G) - 2O2 (G) -----CO2(G)-2H2O(l)
*February 8, 2011*

**chemistRY **

When you react hydrogen gas with nitrogen gas to form ammonia, How many grams of all species ( reactants and products) are left when you start with 140 grams of nitrogen and 40 grams of hydrogen?
*February 8, 2011*

**chemistRY **

When you react hydrogen gas with nitrogen gas to form ammonia, How many grams of all species ( reactants and products) are left when you start with 140 grams of nitrogen and 40 grams of hydrogen?
*February 8, 2011*

**4th grade math**

Thank you! :)
*February 7, 2011*

**4th grade math**

Mrs. Reid brought 32 orange and apple slices to her daughter's soccer practice. There were three times as many orange slices as there were apple slices. How many of each kind did she bring?
*February 7, 2011*

**Math**

I don't see what it wants. I emailed his teacher because it is worded odd. It doesn't go with what he is doing right now. Thanks
*February 7, 2011*

**Math**

first
*February 7, 2011*

**Math**

maybe 1 or i or l I am not sure
*February 7, 2011*

**Math**

No my sons math paper says "use l and . to show the number 52"
*February 7, 2011*

**Math**

How do I show 52 with l and .
*February 7, 2011*

**6th grade math**

rectangle abcd has a perimeter of 62.if the length of ad is 14 what is the area of abcd?
*January 30, 2011*

**Algebra**

I don't know if I entered this problem right it falls in the solving rational equation that simplifies to a quadratic equation
*January 27, 2011*

**Algebra**

Solve for w. 8-(3/w+1)=(7/w+2)
*January 27, 2011*

**spanish**

write the sent correct form of haber Nosotros ? bebido agua?
*January 25, 2011*

**Algebra 2**

a chemistry lab assistant wants to prepare 10 liters of 48% acid solution. in stock he has 80% and 40% acid solutions. how many liters of each in stock solution should he mix to prepare a 10-liter mixture?
*January 24, 2011*

**algebra 2**

it dosnt give me a price for the suite so i shuld make one up?
*January 22, 2011*

**algebra 2**

a store is offering a discount of 30% on a suit. There is a sales tax of 6%. A) using a composition of function, represent this situatio in which the discount is taken before the sales tax is applied. the answer is (1.06)(.7x) = .742x B) using a composition of functions ...
*January 22, 2011*

**algebra 2**

a store is offering a discount of 30% on a suit. There is a sales tax of 6%. A) using a composition of function, represent this situatio in which the discount is taken before the sales tax is applied. the answer is (1.06)(.7x) = .742x B) using a composition of functions ...
*January 22, 2011*

**algebra2**

(1.06)(.7x) = .742x (1.06x)(.7) = .742x . how do you compare these composite functions?
*January 22, 2011*

**Statistics**

A consumer agency wanted to investigate if four insurance companies differed with regard to the premiums they charge for auto insurance. The agency randomly selected a few auto drivers who were insured by each of these four companies and had similar driving records,autos, and ...
*January 22, 2011*

**Statistics**

A consumer agency wanted to investigate if four insurance companies differed with regard to the premiums they charge for auto insurance. The agency randomly selected a few auto drivers who were insured by each of these four companies and had similar driving records,autos, and ...
*January 22, 2011*

**Chemistry**

How much energy does 3.52 * 10^-7m of light have?
*January 20, 2011*

** Math**

Just needs to be simplified
*January 19, 2011*

** Math**

t/h + E^g * the square root of A over m to the Eth
*January 19, 2011*

**english perswasive essay**

And try spelling persuasive correctly
*January 18, 2011*

**Calculus IVT **

The function f is continuous on the closed interval [0,6] and has values that are given in the table above. The equation f(x)=3 must have at least two solutions in the interval [0,6] if k= ? A. 0 B. -1 C. 1 D. 2 E. 3
*January 18, 2011*

**Calculus Optimization**

A model space shuttle is propelled into the air and is described by the equation y=-x^2/2e + ex (in 1000 ft), where y is its height above the ground. What is the maximum height that the shuttle reaches?
*January 18, 2011*

**Calculus Optimization**

A model space shuttle is propelled into the air and is described by the equation y=(-x2/2e)+ex in 1000 ft, where y is its height in feet above the ground. What is the maximum height that the shuttle reaches?
*January 18, 2011*

**Physics - Re-post**

A .20 kg ball is attached to a vertical spring. The spring constant is 28 N/m. The ball is supported initially so that the spring is neither stretched or compressed, is released from rest. How far does the ball fall before brought to a momentary stop by the spring? Our teacher...
*January 18, 2011*

**Math**

the perimeter of parallelogram is 52cm,and jk is 2cm longer than jm. find jk find jm
*January 17, 2011*

**math**

what do you write when you describe a way to compare two fractions when the denominators are the same
*January 11, 2011*

**math**

what do you write when you have to describe a way to compare two fractions when the denominators are the same
*January 11, 2011*

**Physics-Help, confused!**

A .20 kg ball is attached to a vertical spring. The spring constant is 28 N/m. The ball is supported initially so that the spring is neither stretched or compressed, is released from rest. How far does the ball fall before brought to a momentary stop by the spring? Our teacher...
*January 10, 2011*

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