Friday

January 30, 2015

January 30, 2015

Number of results: 19,195

**Chemistry**

What is the pH of a solution that has a concentration of hydronium ions that is 4.7 × 10-4 molar H3O+? Show, or explain, the work used to solve this problem.
*June 13, 2011 by Johnny*

**math**

Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. 8y + 2x = 48 2x = 4y – 12
*June 20, 2011 by Taina*

**algebra**

solve using the eliminatin method. show your work. if the system has no solution or an infinite number of solutions,state this x+y=10 x-y=2
*June 30, 2011 by Anonymous*

**algebra**

solve using the elimination method. show your work. if the system has no solution or an infinite number of solutions, state this x+y=10 x-y=2
*June 30, 2011 by Anonymous*

**Algebra**

Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this: 4x + 4y = -36, 4x + 4y = 12
*July 1, 2011 by Tammy*

**Algebra**

Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. 4x + 4y = -36 4x + 4y = 12
*July 3, 2011 by toni*

**Algebra**

Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. 4x + 4y = -36 4x + 4y = 12
*July 5, 2011 by gina*

**algebra**

Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. 4x + 4y = -36 4x + 4y = 12
*July 6, 2011 by tom*

**algebra**

solve by the substitution method: 8m+n=47 m-5n=52 thank you having trouble completing please show all work so I can learn better
*July 26, 2011 by Barbara*

**PHYSICS**

Give some examples of applications that resulted from work done by physicists? Radios, Televisions, CD's, Computers, etc. Is my answer correct?
*September 7, 2011 by Anonymous*

**Algebra**

Sovle using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this -2x + 3y = -37.5 -4x + 0y = -24
*September 18, 2011 by Destiny*

**Chemistry**

What is the threshold energy of Chromium? I know the answer but i need to show work and through all the equations to get done i get lost. So can someone help me.
*October 12, 2011 by Casey*

**physics**

A uniform chain 10m long and weighing 6 kg permetre hangs vertically.calculate the work required to wind it up
*October 14, 2011 by vishal*

**English Composition**

We are to write a paragaph on how contentment plays a part when we balance school, work, and family. I'm not sure how to start.
*October 17, 2011 by Diane*

**Psychology**

example of work smarter, not harder. I need one sentence of how this phrase could apply to launching internet search.
*October 20, 2011 by Sharon*

**college algebra**

Solve the following equation in the real number system. Please show all of your work. 2x^3-3x^2-14x+15=0
*October 29, 2011 by julez*

**math**

In Jamison's backpack, he only keeps nickels and quarters. He has 30 coins in all. How many of each coin does he have? Show work.
*November 1, 2011 by Cindy*

**Pre-Calculus**

It may look lame but I can't work out how to solve (-9) sqrt(4-x^2) = 4x + 5sqrt2. I need some guidance, please.
*November 20, 2011 by Helga*

**health care**

What is the difference between descriptive and inferential statistics? Provide example how you could apply both in your work environment
*November 22, 2011 by pj*

**geometry**

please tell me if you know of any websites that would be helpful with information on Euclid's life, the scope of his work, and his importance to mathematics
*December 18, 2011 by Brianna*

**pre calculus**

Solve the exponential equation Express you solutions in exact form only Please show your work e^2x - 9e^x - 20 = 2
*December 20, 2011 by anon*

**pre calculus**

solve the following equation in the complex number system Please show all your work. 5x^5 + 32x^4 - 5x - 32 = 0
*December 21, 2011 by Michelle*

**Chemistry**

How many atoms are present in a sample of 2.0 x 10^23 molecules of C7H5(NO2)3? Do you use Avogadro's Number? And please show work.. :)
*January 6, 2012 by Sunny*

**precalculus**

solve the exponential equation express in exact form only show all work. 2e^x= squareroot 10e^x +3
*January 11, 2012 by Sara*

**college algebra**

Solve the following equation in the complex number system. Please show all of your work. 2x^5-3x^4-32x+48=0
*January 18, 2012 by Jo *

**algebra 2**

how do you find a quadratic equation if you are given the solutions such as x=2/3 and x=-4 can you work out the solution of how you got your answer please
*January 18, 2012 by kay*

**physics**

A uniform steel chain 20 m long and with a mass of 5 kg per m, hangs vertically. Compute the work required to wind it up
*January 24, 2012 by joan*

**English**

Does this sentence work? Lana, the protagonist of the novel, struggles to reach her dream, but only to encounter a succession of dilemmas from the .
*January 24, 2012 by saphire*

**math**

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. x + y = 10 x – y = 2
*February 2, 2012 by Shirley*

**Math**

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. x + y = 10 x – y = 2
*February 2, 2012 by Shirley*

**English**

F. Scott Fitzgerald dropped out of college to ..... begin writing. get married. join the army. work for his father.
*February 5, 2012 by Sara*

**math**

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -3x – 5y = 61 7x – 5y = -9
*February 5, 2012 by Shirley*

**Calculus**

Integrate [1/square root of(e^(2x)-1)]. I have to use u substitution. We are doing the integrals of inverse trig functions, but I cannot get it to work out!
*February 5, 2012 by Elaine*

**Medical Terminology**

Why is it so important to know terms that are associated with all of thedifferent body systems even if you were to only work with onesystem?
*February 6, 2012 by Tony*

**physics**

under what conditions can you use the formula W=Fnetd to calculate the work done on an object? Describe at least two requirements.
*February 25, 2012 by Anonymous*

**physics**

Calculate the work required to lift a 20kg object from the floor to a height of 2 meters. Give your answer in Joules
*February 26, 2012 by Darcie*

**Physics**

This problem is about the work-energy theorem. What is the final speed of the particle? Express your answer in terms of K_f and M.
*March 1, 2012 by Jenni*

**algebra**

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -8x – 2y = -28 -3x + 5y = 47
*March 4, 2012 by Anonymous*

**algebra**

Write the slope intercept equation for the line that passes through (14,-2) and is perpendicular to 7x-10y=18.Please show work.
*March 19, 2012 by sherry*

**math - please help**

What is the rotational speed (rpm) of the 64 in diameter rear tires of a tractor traveling at 6.5 mph if there is no slippage? How do I work this? Thank you.
*March 31, 2012 by Nilan*

**us/101**

How do you think collaboration fosters a critical thinking? How might the two work together in your academic and personal life?
*April 5, 2012 by poppyseed*

**physical science**

Sarah lifts a 345 g shopping bag a distance of 1.2 meters onto a shelf. How much work was done?
*April 12, 2012 by Katie*

**Science**

Eight bricks 6 cm thick with mass 1.5kg lie flat on a table.how much work is required to top them one on another?
*May 14, 2012 by Christopher*

**algebra**

i have to write a number in the block to make this true how do i get the answer for 70-30=40- please show me a example so i can complete my work
*May 22, 2012 by avonia*

**social studies**

what does this sentence mean im doing a project on queen eilzabeth i *how did his or her work signal a rebirth or show an interst in humanity?
*May 22, 2012 by Anonymous*

**physics**

Mitch carries a large cat from one end of his bedroom to the other.does he do any work?if not why? if so,what energy change is occurring?
*May 31, 2012 by lisa*

**PHYSics PLEASE I NEED HELP**

wally holds a pillow over his head for an hour does he do any work ? if not y? what energey changes is accouring?
*June 1, 2012 by lisa*

**math**

Determine if each function is even, odd or neither. Show all work and include an explanation of any symmetry that exists. A) y = x^4 + 4x^2 B) y = 3x^3 - x - 3 C) y = x^5 - x^3 + x D)y = 3
*June 9, 2012 by liban*

**math**

Determine if each function is even, odd or neither. Show all work and include an explanation of any symmetry that exists. A) y = x^4 + 4x^2 B) y = 3x^3 - x - 3 C) y = x^5 - x^3 + x D)y = 3
*June 11, 2012 by liban*

**algebra**

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 2x-6y=2 -8x+6y=-26
*July 3, 2012 by Ann*

**algebra**

Solve using the elimination method. Show your work. If the system has not solution or an infinite number of solutions, state this. -2x-8y=-42 -4x+6y=-18
*July 3, 2012 by Ann*

**Algebra**

Solve using the elimiation method. Show your work. If the system has no solution or an infinite number of solutions, state this. 2x=6y= -2 -8x+6y= -26
*July 5, 2012 by Ann*

**science**

how much work is done in bringing three electrons , which are intially a great disance apart to how fats will it be moving then it is at distance ?
*July 19, 2012 by mohit*

**Physic**

Calculate the average speed of an oxygen molecule (with a mass of 5.3e-26 kg) at room temperature (300 Kelvin)show your work
*July 22, 2012 by Luis*

**COM/215**

REVISE Studying is hard work many students find they study better when they take regular breaks.
*August 8, 2012 by Sonia*

**Maths**

What steps were taken to get px-2x^2 to be p-4x?? I can't work out what happened to the 'x' after 'p'. I can see that 2x^2 equals 4x though. Any help would be much appreciated :) Thanks
*August 14, 2012 by Cara*

**math**

The following sets of ordered pairs are functions. Give a rule that could describe each function. Please show your work. A.{(5,3),(7,5),(11,9),(14,12)} B. {(2,5),(3,10),(14,17),(5,26)}
*August 18, 2012 by mary*

**college algebra**

graph the function and state the vertex axis of symmetry, the intercepts, if any: f(x)=x^2-8x+15 Please show work so i can understand this. thank you
*August 18, 2012 by alli*

**college algebra**

analyze the graph of the following function. r(x)= x^2+x-6 -------- x^2-x-2 there are 8 steps but they dont make sense to me... please show work!! thanks
*August 21, 2012 by alli*

**math**

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*

**statistics**

A student scored 30 percent on a test, and was in the 24th percentile. Explain these two numbers! Please show work!
*September 29, 2012 by Anonymous*

**science**

a person needs to push a lever down with a force of 16.5N and a distance of 0.75 to lift the rock 0.25m. how much work is done?
*October 18, 2012 by sassy*

**CHEMISTRY**

Describe how you would prepare 250. mL of a .500 stock solution of sodium hydroxide. (show all work)
*October 28, 2012 by TYLER*

**Chemistry**

what mass of water will be formed by reaction of 3.50g of methylamine (8CH3NH2) with 15.0g of perchloric acid (13HClO4)? Answer is 99.1. How do you work this?
*November 6, 2012 by Michelle*

**college algebra--I really need help!!**

Find the domain of the composite function FOG f(x)= 2/x-3; g(x)= 7/x please show work so I can undestand
*November 25, 2012 by Ladybug*

**Chemistry**

How to work out: The half-life of Indium-116 is 14 seconds. How long will it take for 32g of this isotope to decay to 1.og?
*December 1, 2012 by Anonymous*

**maath**

how many times did the minute hand of a clock rotate during March this year ? please explain how you work it out,thanks
*December 2, 2012 by wan*

**Physics**

How much work is done to the wagon by the girl pulling her brother shown in Figure 4.16, if she travels 25 m? F= (50N), 30 DEGREES ANGLE
*December 13, 2012 by juninho*

**work test**

ryan discounts an 80-day note for $15,000 at 12 percent. the bank discount is: (assume ordinary interest)
*December 19, 2012 by peg*

**calculus**

Find the midpoint of the line segment joining the points P1 and P2 P1=(-1,5); P2=(2,0) m=(x,y)=? type an ordered pair Please show work
*January 1, 2013 by Lisa*

**ALLIED HEALTH**

If you work in a hospital or doctor's office and assign numeric values to procedures and diagnoses for the purpose of reimbursement, you are a
*January 24, 2013 by SAM*

**physical sciences**

how much work is required to accelerate a can with a mass of 1000kg from 20 metre per second to 30m cubed
*February 1, 2013 by gedletoon physics*

**MATH**

2(7w-1w+7)>122 ? what work would i do? im just learning inequalties and i have a quiz tomorrow with problems like this, please help!
*February 6, 2013 by PLEASE HELP ME*

**Calculus**

How do I answer these questions. Please show work. The answers are through the link as a png image. THanks! h t t p : //goo.gl/NNf9A
*February 8, 2013 by Madeline*

**ETSU**

How much work is done when a force of 800.0 N is exerted while pushing a crate across a level floor for a distance of 1.5 m
*February 9, 2013 by Rick*

**Chemistry**

Determine the theoretical field of aspirin for a student who started the experiment with 2.489 g of salicylic acid. Show your work.
*February 12, 2013 by Margaret*

**Chemistry**

How many grams of magnesium sulfate would you need to make 0.500 L of a 10.0% M/V solution in water? Please show work.
*February 18, 2013 by Margaret*

**English**

For the speaker in "Local Sensibilities," pineapples represent: A: his favorite food. B: a Thankgiving ham. C: tourist D:work Answer B ?
*March 4, 2013 by Ciara*

**English**

For the speaker in "Local Sensibilities,"pineapples represent: A: His favorite food. B: A Thanksgiveing ham. C: tourists D: work. Answer: B ?
*March 26, 2013 by Ciara*

**english**

For the speaker in "Local Sensibilities,"pineapples represent: A: His favorite food. B: A Thanksgiveing ham. C: tourists D: work. Answer: B ?
*March 27, 2013 by Ciara*

**physics**

five joules of work are needed to shift .5 C of charge from one place to another. the potential differences between the places is
*April 8, 2013 by Susan*

**physics**

five joules of work are needed to shift .5 c of charge from one place to another. the potential differences between the places is
*April 9, 2013 by Susan*

**physics**

The work done by non-conservative forces is equal to the total change in kinetic and potential energy. True or False?
*April 15, 2013 by kelsi*

**Math**

Let p and q be the roots of the polynomial mx^2 + x(2 - m) + 3. Let m1 and m2 be two values of m satisfying p/q + q/p = 2/3. Determine numerical value of m1/(m2)^2 + m2/(m1)^2. Please work the complete solution.
*April 23, 2013 by Watson*

**Math**

Let p and q be the roots of the polynomial mx^2 + x(2 - m) + 3. Let m1 and m2 be two values of m satisfying p/q + q/p = 2/3. Determine numerical value of m1/ (m2)^2 + m2/(m1)^2. Please work the complete solution.
*April 23, 2013 by Watson*

**social studies**

Why should slaves have less hours to work? REMEMBER THINK LIKE A PERSON FROM 1855!!
*April 25, 2013 by Aleyshka*

**5th grade math (dividing fractions)**

Can you check this problem? How many twelfths are in one sixth? work: 1/6 divided by 1/12 = 1/6 * 12/1 = 2 ans= 2
*May 13, 2013 by Alex*

**Physics**

If the coefficient of kinetic friction is 0.25, how much work do you do when you slide a 45 kg box at constant speed across a 5.8m -wide room?
*May 30, 2013 by James*

**math**

15 tv were shipped 4 were defective if 2 tv's were random selected compute the possibility of both tv's working and the probability that at least one of the 2 tv does not work
*June 6, 2013 by linda*

**English**

Explain why the literary work captured your interest, using term and concepts form the text to support your explanation.
*June 10, 2013 by gail*

**College Algebra**

1 -1 -1 1 2 0 1 -3 -7 0 3 0 -2 2 10 6 2 4 5 9 -3Row1 + Row3 -6Row1 + Row4 How do I work this using a calculator I get so confused and I don't know where to go in order to input info.
*July 6, 2013 by Julie*

**Chemistry**

Calculate the work done (in joules) by a chemical reaction if the volume increases from 3.3L to 3.5L against a constant external pressure of 3.7atm .
*July 12, 2013 by Karina*

**biology**

Certain spider toxins work by inhibiting Ca2+ channels. Briefly explain how this works and what happens to the person.
*July 13, 2013 by loveag*

**Carr Middle School**

Math 601 divide by 57. I need to show all the work for this long division problem.
*September 1, 2013 by Makayla*

**Mathematics**

If a 75 kg person pedals a Monarch leg ergometer at 50 rpm, how much resistance is needed to work at a level of 11 METs?
*October 6, 2013 by Natasha*

**physical science**

A girl on a bicycle drags a wagon full of newspapers at .80 m/s for 30 min. using a force of 40 N. How much work is done?
*October 27, 2013 by landon*

**Gen chem 2**

calculate the work performed if a balloon contracts from11.75 L to 806 mL due to an external pressure of 3.9 atm.
*November 6, 2013 by Stacey*

**American History!!!**

How was the development of interchangeable parts an example of the move to make work "less skilled" in the early 1800s?
*November 16, 2013 by Emily*

**Math**

Samantha swam 30 meters to a boat in 16 seconds. How long did it take her to swim each meter? How would I work this out? Thank You
*January 18, 2014 by Keith*

**physics**

A boy of mass 50kg runs up a set of stairs of total height of 3.0m.find the work done against gravity
*January 22, 2014 by izzy *

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