Monday

September 15, 2014

September 15, 2014

Number of results: 18,199

**precalc!!!!!**

Let f(x)=3x-4x^2 Find f o f o f So... F(f(x)) I got a really big answer..... I think I might have done something wrong when doing the distributing algebraic work.
*March 5, 2012 by L.Bianchessi*

**English**

What was so great about Henry Wadsworth Longfellow when it came to his work? What inspired him make write the types of poetry that he had?
*March 6, 2012 by Anonymous*

**Algebra**

Solve using the elimination method.Show work.If the system has no solution or an infinite number of solutions state this. 7x+8y=51,7x+10y=55
*March 22, 2012 by sherry*

**Physics**

A 185kg refrigerator is loaded into a van by moving it up a 10.0m long frictionless ramp that is at an angle of 11.0 degrees. How much work is done?
*April 1, 2012 by Marilyn*

**Physics**

A monoatomic gas expands isobarically.What will be the percentage of heat supplied that increases the thermal energy and that involved in doing work for expansion?
*April 9, 2012 by Tulika*

**math**

Which value below is a possible solution to the compound inequality 0<3x<30? A. 5 B. 3.2 C. 45 D. -17 If you are substituting these number for x, then C and D do not apply; however, A and B both work. Is this how I should be doing it?
*April 12, 2012 by Jane*

**triggggggg**

Find the vertex and axis of symmetry of y = -2x^2 + 4x + 1. Show all of your work and justify your reasoning. Note: The ^ symbol means to the power.
*April 17, 2012 by cheyanne marie*

**triggggggg**

Find the vertex and axis of symmetry of y = -2x^2 + 4x + 1. Show all of your work and justify your reasoning. Note: The ^ symbol means to the power.
*April 17, 2012 by cheyanne marie*

**Pre calculus**

How do you work this problem? Find the exact value of sin 2u, cos 2u, and tan 2u given that cot u=3 and 180<u<270
*May 14, 2012 by Cynthia*

**MATH**

Write a two-step equation that needs the steps of addition then multiplication in order to be solved, and then solve it. Show your work.
*May 24, 2012 by leya*

**physics PLEASE I NEED HELP**

Wally now lift the box of the floor and put it on a shelf. Does he doing any work? If not why? If so .what energy change is accurring?
*June 1, 2012 by lisa*

**Society & Environment Engineering**

The art of getting work done from the people for the predefined goal is called a)Management b)Administration c)Both a & b d)None of these
*August 3, 2012 by Rajan*

**Algebra2**

Can Someone Check My Anwsers? 1. -17=10x+3 = x=2 2.9x+5=7x+3x-2 = x= 7/1= 7 #I Do Have My Work Shown, On a Seperate Sheet Of Paper . But I Want to Know If I Got My Answers Right.
*August 16, 2012 by Sara*

**college algebra**

determine the quadratic function f whose graph is given. the vertex is (1,-3) y intercept is -2 please show work so i can see how this is done, thank you!
*August 19, 2012 by alli*

**pre-calc**

Show that f and g are inverse functions algebraically. f(x)=x^3/2 g(x)=3 cuberoot 2x My work so far: (3sqrt2x)^3 ------------ 2 I need help on the numeral part of the expression
*September 11, 2012 by Annie*

**Science**

While rearranging a dorm room, a student does 378 J of work in moving a desk 2.8 m. What was the magnitude of the applied horizontal force?
*September 19, 2012 by KeKe*

**Calculus -Series3**

Find the sum of the following convergent series: (a) Ei=1 1 / (3i - 2)(3i + 1) I know that it equals: = 1/4 + 1/28 + 1/70 + 1/130 + 1/208 a= 1/4, but I can't figure out what r = 1/4 * 1/7 = 1/28, but from 1/28 to 1/70 and so on it doesn't work anymore.
*September 20, 2012 by Paul*

**geomatry**

the length of the radius of th dartboard is 9in. the diameter is represented by the expression 3x+3 write an equation that you cansolve for x then solve for x the x=5 but how do you work it out
*September 26, 2012 by shea*

**Math**

An invoice of $12,000 is dated April 5. The terms 5/10,n/30 are offered. Find the amount due if the discount is earned. Show your work.
*October 12, 2012 by Allie*

**physics**

A 67.5 kg hoop rolls along a horizontal floor so that its center of mass has a speed of 0.090 m/s. How much work must be done to stop it?
*October 30, 2012 by tom*

**psych**

Alfred Binet's work is associated with intelligence testing visual perception psychopathology comparative psychology classical conditioning
*November 1, 2012 by george*

**physics**

two electric charges +10 microC and -20microC are located .35 m apart how much work is required to double the distance between them?
*November 4, 2012 by Grane*

**physics**

two electric charges +10 microC and -20microC are located .35 m apart how much work is required to double the distance between them?
*November 4, 2012 by Grane*

**Chemistry**

Can someone help draw/explain the Lewis Dot Structure for OPBr3. I've tried different things, but none of them seem to work.
*November 19, 2012 by M*

**psychology**

Can you give examples perhaps in a work setting or even in society on contrasting differences between a dominat culture and subclulture?
*November 28, 2012 by Tameika*

**Chemistry..**

A compound whose empirical formula is NO2 could have a molecular mass of what? a) 23 b)39 c)92 d)120 0 please explain and show your work.....
*December 17, 2012 by Anonymous*

**calculus**

find the complex zeros of the polynomial function. write f in factored form. f(x)=x^3-10x^2+42x-72 please show work.
*December 22, 2012 by Jimmy-can someone please help*

**science**

how much gravitational potential energy does the pile driver have when it is lifted to a height of 15m? show work please
*January 7, 2013 by Taylor*

**science**

how much gravitational potential energy does the pile driver have when it is lifted to a height of 15m? show work please
*January 7, 2013 by Taylor*

**science**

you read about a rope and pulley machine that was able to produce equal amounts of output work. was this a realistic example why or why not?
*January 13, 2013 by ricardo*

**science**

you read about a rope and pulley machine that was able to produce equal amounts of output work. was this a realistic example why or why not?
*January 13, 2013 by ricardo*

**Trig**

Find the point on the terminal side of θ = three pi divided by four that has a y coordinate of 1. Show your work for full credit.
*January 20, 2013 by Mitchel*

**science**

what must the crane work against in order to lift the box upward? . wind . friction . gravity . cable tension
*February 6, 2013 by ninel*

**science**

While rearranging a dorm room a student does 286 J of work to move a desk 1.3 m. What was the magnitude of the applied horizontal force?
*February 21, 2013 by Valerie*

**science**

While rearranging a dorm room, a student does 286 J of work in moving a desk 1.3 m. What was the magnitude of the applied horizontal force?
*February 21, 2013 by Valerie*

**science**

While rearranging a dorm room, a student does 287 J of work in moving a desk 2.5 m. What was the magnitude of the applied horizontal force?
*February 25, 2013 by Kim*

**Life orientation**

What can thembi do to deal with the unethical behaviour?name 4 action she can take. 3.3.3 How should discrimination in the work place be dealt with?
*March 3, 2013 by Sarah*

**booker washington**

The lawyer suggested that you and __________ work to find an agreement outside the courtroom, for the trial would be long and unpleasant
*March 19, 2013 by dories*

**Chemistry**

Determine the percent Composition of each element in phenyl sulfide: (C6H5)2S. Please show work in order to walk me through this.
*March 27, 2013 by Kristen*

**math**

a family walked 15 miles in one day . at that rate how many would they travel in 5 days? make a table to show your work
*April 4, 2013 by jill*

**science**

Calculate the work done by lifting a stack of books 0.5 m onto a table. The force you exerted eas 150N. Please help I am lost as how to do this
*April 5, 2013 by Cherie*

**Physics**

How much work is done pushing a wheel barrow full of cement 5.3m forward if a force of 500N is applied 20 degrees from the vertical?
*April 11, 2013 by Ted*

**science**

Calculated how many grams of methane (CH4) are in a sealed 80 mL flask at room temperature (22ºC) and 780 mm Hg of pressure. Show all your work.
*April 15, 2013 by bob*

**social studies**

The main work of representatives in a parliament is a.running trials b.trining an army c. kkeeping the peace d.making laws
*April 21, 2013 by Becky*

**science**

if a person puts 500 newtons into pushing an immovable wall that was 2 meters tall how many joules of work would they do
*May 30, 2013 by Hannah*

**English**

Could you help me to order these sentences, 1. Wha do you do couldallow us to couese in work time is. 2. To new might you skill a want about learning think.
*July 24, 2013 by Agus*

**Calculus**

A position function has the positions listed below. t 2 4 7 10 12 f(t) 34 98 155 205 271 Approximate the instantaneous velocity at t=5. show work.
*September 16, 2013 by DW*

**College Algebra**

solve the polynomial inequality and graph on number line. express in set interval rotation. Show work x^3 - 3x^2 - 9x + 27 < 0
*November 24, 2013 by Jenn*

**US History**

2. Explain how trusts, pools, holding companies, and communities of interest work to reduce competition and to introduce 'economies of scale.'
*January 9, 2014 by Adam*

**American History**

In the 1840s, the Spanish recruited _______ laborers to work on plantations in Cuba. A. Chinese B. Vietnamese C. Japanese D. Indonesian
*January 21, 2014 by Victoria*

**physics **

calculate the work done on a 1550kg elevator car by its cable to lift it 40 m at constant speed assuming friction average 125 n
*March 10, 2014 by Mohanad*

**physics**

a car thats 1000 kg is stopped and the brakes exert a force of 3000 N over a distance of 891 meter, how much work is done?
*March 12, 2014 by Anonymous*

**Multiply write the result in scientific notation.**

Its only practice work but I NEED the extra points. These are the problems I am having trouble with: (9*10^4) (8*10^6)
*May 30, 2014 by nonononono*

**chemistry**

what mass of the following compounds will dissolve in 200g of water at 30 degrees Celsius a) CuSO45H2O b) KNO3 c) NaNO3 how do a work it out, thanks
*July 24, 2014 by sylvie*

**chemistry**

how would you begin this question? An empty 15.0 L cylinder, .500 moles of gaseous PCl5 are added and allowed to reach equilibrium. The concentration of PCl3 is found to be .0220M. (Temp at 375K) PCl3(g) + Cl2(g) --> PCl5(g) i need to fine how many moles of PCl5 remain at ...
*April 28, 2007 by Anonymous*

**ALGEBRA 1!PLZ HELP!**

Use the Substitution method to solve the system of equations. y - 2x = -5 3y - x = 5 Solve the first equation for y. y = 2x-5 Substitute that for y in the second equation and solve for x. Then use the value of x to substitute back into the first equation and solve for y. Post ...
*November 6, 2006 by SANDRO!*

**7th grade math Ms. Sue please help I have no idea!**

#10 On a blueprint, 1 inch = 13 feet. If the dimensions of the playroom on the blueprint are 0.35 inches x 1.25 inches, what are its actual measurements? * *Show all your work for full credit* #11 The coordinate of rectangle ABCD are given. Find the coordinates of its image ...
*November 5, 2012 by Delilah*

**physics**

7150/(33.5e4) = g ice doesn't work. Am I calculating incorrectly? heat of fusion for water is 334 J/g. You want it in J/g since q is given in the problem in J. The answer will be in units of grams of ice. You will need to change to kg since the problem asks for it in kg. ...
*December 12, 2006 by Ann*

**check over--**

this is a book review for 9th grade honors english. does it look OK? are there any errors or anything? thanks-- The novel Dairy Queen by Catherine Murdock is the story of 15-year-old D.J. Schwenk who lives in Red Bend Wisconsin. Her father gets injured and can no longer take ...
*May 29, 2008 by Anonymous*

**ALGEBRA WORD PROBLEM! HELP!**

And if a length of a rectangle is 3 more than twice the width and the are is 90 cm squared than what are the dimensions of the rectangle? The width of the rectangle is 43.5 and the length of the rectangle is 87. All together when you add it up it will make 90 cm squared. If ...
*January 23, 2007 by Judy*

**please proofread this essay?**

I would like to take this opportunity to let you know that I am interested in applying for AP United States History. I believe that taking AP United States History will prepare me well for my college education and beyond. In addition, this course will enable me to gain a ...
*February 10, 2009 by Anonymous*

**MATH HELP**

The amount of fill (weight of contents) put into a glass jar of spaghetti sauce is normally distributed with mean ì = 843 grams and standard deviation of ó = 9 grams (d) Find the mean of the x distribution. (Give your answer correct to the nearest whole number.) 843 Was my ...
*June 19, 2013 by TOM7*

**business**

i have a problem with this question my teacher gave me. i don't know what to write for the answer. the problem: there is a girl named Jane who is hired as the head of the payroll department at R& S Electronic company, firm of 75 employees. she is hired by Eddi the general ...
*August 22, 2011 by jack smith *

**Physics**

Electrons are ejected from a surface with speeds ranging up to 6.0 x 10^5 m/s when light with a wavelength of 400 nm shines on it. a.) What is the work function of this surface? b.) What is the threshold frequency for this surface? c.) What is the deBroglie wavelength of an ...
*June 12, 2006 by Nathaniel*

**physics**

Two thin rectangular sheets (0.06 m 0.52 m) are identical. In the first sheet the axis of rotation lies along the 0.06 m side, and in the second it lies along the 0.52 m side. The same torque is applied to each sheet. The first sheet, starting from rest, reaches its final ...
*June 1, 2007 by meredith*

**algebra**

2. The equation relates the radius r of a drainpipe in inches to the flow rate F of water passing through it in gallons per minute. a. Find the radius of a pipe that can carry 600 gallons of water per minute. Round to the nearest tenth. (Let ) b. Solve the following equation ...
*July 11, 2011 by stephanie*

**Molar Mass & Elements**

The weight percent of oxygen in an oxide that has the formula MO2, is 15.2%. What is the molar mass of this compound? What element or elements are possible for M? what can someone give me a push in the right direction???? Let x be the taonic mass of the unknown element. Solve ...
*June 26, 2006 by nglaze*

**Physics please check repost**

The pressure and volume of a gas are changed along a path ABCA in the figure. The vertical divisions on the graph represent 4.0 x 10^5 Pa, and the horizontal divisions represent 4.5 x 10^-3 m3. The diagram is a upright rectangle divided into small squares (8 up and 6 across). ...
*April 23, 2007 by Mary*

**physics**

The physics of a golf ball and kinetic energy. When a 0.045 kg golf ball takes off after being hit, its speed is 41 m/s. a) What is the kinetic energy of the ball after it has been hit? b) How much work is done on the ball by the club? c) Assume that the force of the club acts...
*April 24, 2011 by aly*

**Algebra**

1. (2x-6)/(21) divided by (5x-15)/(12) 2. Solve (x)/(x-9)-4=(9)/(x-9)..I got -6, is that correct? 3. Add. Express your answer in simplest form...(4)/(s)+(6)/(s^2).. 4. Add. Express your answer in simplest form...(x^2)/(x+4)+(8x+16)/(x+4) Lets check you number 2) -6/(-15) - 4= ...
*May 27, 2007 by Helpless in Math*

**CHEMISTRY**

Mass (before reaction): test tube + HCl(aq) + stir bar + capsule 26.600 g Mass (after reaction): test tube + HCl(aq) + stir bar + capsule 25.300 g Volume of water displaced from the squirt bottle 148 mL Temperature of the CO2(g) 287.4 K Pressure (atm) 1.032 atm Using this data...
*October 22, 2012 by Karina*

**accounting**

P20-2A For the year ended December 31, 2010, the job cost sheets of DeVoe Company contained the following data. Job Number Explanation Direct Materials Direct Labor Manufacturing Overhead Total Costs 7640 Balance 1/1 $25,000 $24,000 $28,800 $77,800 Current year's costs 30,000...
*March 27, 2011 by Holly*

**biology**

Smithers thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special juice to drink while they work...
*September 5, 2013 by loli*

**Statistics**

Suppose that you are designing an instrument panel for a large industrial machine. The machine requires the person using it to reach 2 feet from a particular position. The reach from this position for adult women is known to have a mean of 2.8 feet with a standard deviation of...
*August 5, 2014 by Lamont Sanford*

**English**

1. The work is too difficult to do. 2. The work is so difficult that I cannot do it. (Does #1 mean #2? Are both the same?) 3. Mother Teresa...... (Why do you use 'Mother' before Teresa, the famous nun who passed away?) 4. I hope to be a scientise. 5. I hope that I will be a ...
*October 11, 2008 by John*

**science**

How many grams of hydrochloric acid are required to react completely with 4.30g of zinc? How many molecules of gas will be produced? 1. Write the balanced chemical equation. Zn + 2HCl ==> ZnCl2 + H2 2. Convert grams Zn to mols. mols = grams/atomic mass Zn. 3. Using the ...
*March 17, 2007 by Josh*

**English**

Sonia, a fellow employee and friend, repeatedly shows up late for work. You and others have covered for her in the past, but some people are beginning to resent her tardiness and several have made comments to her about about it. However, she has not responded to peer pressure ...
*March 11, 2011 by Natlie*

**maths**

how do you work out exponential graphs? keshvir grade 10 south africa I depends on the problem. Do you have an example of one you need help on?
*November 5, 2006 by keshvir*

**Physics**

Two objects, each with a charge of +3·10-6 C, are located 7 m apart. What is the electric force between them? Use coulombs equation: I will be happy to critique your work.
*November 12, 2006 by Laura*

**Physical Education**

The ability of your heart and lungs to work effectively when you exercise and to return to normal when you stop is what? Cardiovascular recovery. I hope this helps. Thanks for asking.
*November 28, 2006 by Ruth*

**Matthew**

5x{(24-19)x {(25+23)/12-(9-7)} 48 / 12 4 - (2) 5x (5) x (2) 25 x 2 = 50 Did I work this correctly? Please Help!! It doesn't come across real clear as to what the original equation was. Did you use the Orders of Operations (PEMDAS) when you solved it?
*February 15, 2007 by Algebra--Please Help*

**math**

Find the equivalent measure. 45 feet=___________yards show work I suggest looking up the conversion factor between the two and working from there
*March 27, 2007 by Katelyn*

**College Algebra**

okay so using y = (-5/6)x + 3 how do i find the corresponding value for y when x = 12? here was the previous work to the problem. 5x+6y=18 solve for y 5x + 6y = 18 Subtract 5x from both sides. 6y = 18 - 5x Divide by 6 y = (18-5x)/6 or 3 - (5/6)x
*November 16, 2007 by Alicia*

**introduction to psychology**

Every morning, as she prepares for her two-hour drive to work, Carole gets a headache,identify the stressor in this situation.
*January 31, 2008 by Charlene*

**precalc**

factor: (x-1)^1/2 - x(x-1)^-1/2 ive tried multiple different ways to firgure it out, but i cant seem to get too far in my work, i just dont know where to start.
*February 17, 2008 by lindsay*

**music**

how can i write really good song lyrics? i suck at writing! can someone help or better yet, give me a verse to work with? thnaks
*February 19, 2008 by Christine*

**english**

does this sentence work and make sense? It is important that when the conspirators attempt to kill Caesar, they juxtapose themselves so they can communicate easily with one another.
*February 26, 2008 by Maggie*

**math**

whats the integral of e^(3sqrt(x))? i think i'm supposed to use substitution but i dont know what to substirute, i tried u= x^(1/3) but it didnt work out, please help!
*March 1, 2008 by belinda*

**Physics**

What is the smallest a flat mirror can be while still being able to see your full reflection? I need to show my work/explain. Can anyone help me?
*May 19, 2008 by Lindsay*

**geometry/algebra**

I have tried to work this several ways and can not get the answer of 5 find x if the slope of a line passing through points A(4,3) and B(x,7)equals 4
*October 11, 2008 by Rose*

**algebra ll**

find a geometric means between 4096 and 972? my answers is (0.75)^4 if it wrong can you give the right answer and show the work as simple as you can. thank you
*October 26, 2008 by Anonymous*

**Pre-Cal**

Find the median on the data: [42,51,53,53,59,61,75,100] My work: 53+59/2=82.5 According to the teacher that is not correct but that is the way the book showed how to do it when you had an even #. Thanks for the help.
*January 3, 2009 by Lucy*

**music**

Richard Wagner's major work is a four-opera cycle called A. Carmen. B. The Barber of Seville. C. The Ring of the Nibelung. D. Siegfried.
*January 12, 2009 by cheryl*

**mental health**

what kind of questions can i ask adult handicap men to bond with them some. I am going to go meet these guys and maybe work as their house mother.
*February 3, 2009 by april*

**anatomy**

What is the kcalorie value of a meal supplying 110g of carbs, 25g of protein, 20g of fat, and 5g of alcohol? Please help show work
*April 21, 2009 by lizzy*

**ecology**

My teacher was talking about how if we added nitrogen and phosphorus fertilizers in the ocean, we would help reduce carbon dioxide. I don't understand. How does that work?
*September 17, 2009 by Priya*

**Calculus**

Can someone please work this algebra. verify that y(x) = -ln (x - cx^2) satisfies the ODE x(e^y - y') = 2 where c is constant. I have been working through this and it is way too messy.
*September 22, 2009 by Yamada*

**Physics**

If a 20 kg object fell to the surgace of the Earth froma height of 30 m, what would its final velocity be? (work problem from the stanpoint of linear motion)
*October 6, 2009 by Kayla*

**scientist**

A techer pushed a 98 newton desk across a floor for a distance of 5 meters she exerted a horizontal force of 20 newtons. how much work was done?
*October 25, 2009 by Barb *

**Business**

Have written codes of unethical conduct become less important today because of presence of so many self-managing work teams?
*October 27, 2009 by Chris*

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