Wednesday

April 16, 2014

April 16, 2014

Number of results: 156,823

**Physics, Calculus(alot of stuff together)= HELP!!!**

Can someone please check my Calculus work and see if it is correct? THANK YOU =D
*Sunday, September 16, 2007 at 7:12pm by ~christina~*

**FRENCH WORK ASAP**

please please someone check my work I don't understand it fully so I am asking if someone could please check my work thank you if it's too much I'm sorry. God Bless
*Wednesday, January 21, 2009 at 5:07pm by Hellokitty1993*

**Calculus - please check my work**

thank you!
*Monday, June 18, 2012 at 5:55pm by Lenna*

**Calculus - please check my work**

thank you
*Monday, June 18, 2012 at 5:48pm by Henry*

**Calculus - please check my work**

thank you
*Tuesday, June 19, 2012 at 12:26am by Henry*

**Calculus - please check my work**

Differentiate each function a) y = -3x^2 + 5x - 4 b) f(x) = 6/x - 3/(x^2) c) f(x) = (3x^2 - 4x)(x^3 + 1) the answers i got for each was: a) y'= -6x + 5 b) f'(x)= -6/x^2 + 6/x^3 c) f'(x)= 15x^4 + 6x - 16x^3 - 4 please double check and let me know if these are correct, thank you.
*Monday, June 18, 2012 at 5:48pm by Henry*

**Calculus - please check my work**

All correct, well done!
*Monday, June 18, 2012 at 5:48pm by MathMate*

**Calculus - please check my work**

All correct!
*Monday, June 18, 2012 at 5:55pm by MathMate*

**Calculus - please check my work**

thank you! can u help me on this question please determine the coordinates of two points on the plane with equation 5x + 4y - 3z = 6
*Monday, June 18, 2012 at 5:48pm by Henry*

**Calculus (Please check my work.)**

Also, for 5, is the marginal cost at 31 $186?
*Saturday, December 14, 2013 at 9:25am by Lindsay*

**Calculus - please check my work**

evaluate rounding to 2 decimal places if neccessary a) 1n5 = 1.61 b) lne^2 = 2 c) (lne)^2 = 1 please let me know if these are correct, thank you.
*Monday, June 18, 2012 at 5:55pm by Henry*

**Calculus (Normal Line, please check my work)**

Sure, that is a perfectly good way to look at it.
*Saturday, December 17, 2011 at 3:51pm by Damon*

**Chemistry- please check my work**

We would much prefer you to show your work and let us check your answer. We can help better that way.
*Wednesday, February 25, 2009 at 9:54pm by DrBob222*

**Calculus (Normal Line, please check my work)**

-1/oo is very very small :)
*Saturday, December 17, 2011 at 3:51pm by Damon*

**calculus (check my work please)**

right, because my answer can be simplified into: sec^5(x)/5-sec^3(x)/3
*Thursday, June 7, 2012 at 12:15am by Jay*

**Calculus (Normal Line, please check my work)**

I apologize if I seem like I don't understand what you are trying to explain, but you have really confused me on what I thought was a more simple problem. I would really appreciate it if you could check my original answer using differentiation, instead, as this is the method I...
*Saturday, December 17, 2011 at 3:51pm by Mishaka*

**Calculus (Normal Line, please check my work)**

even better, have wolfram plot z = 4*sin(x) + 9*cos(y) and check "show contour lines" One of those contour lines will be at z=9, and will look show why your graph looks the way it does.
*Saturday, December 17, 2011 at 3:51pm by Steve*

**Pre-calculus-check answers**

1) I got a remainder of 5, check your work 2) correct
*Saturday, August 23, 2008 at 1:47pm by Reiny*

**calculus (check my work please)**

I did, I got a completely different result. Also, SAY SOMETHING USEFUL NEXT TIME!!! tired of you spamming that stupid reply
*Thursday, June 7, 2012 at 12:15am by Jay*

**Calculus 12th grade (double check my work please)**

2 and 3 are right. the first one is a trick question. It is a circle, so the tangent line is always 90 degrees to the radius
*Sunday, March 6, 2011 at 1:08am by Jay*

**calculus**

Iamhaving a really hard time trying to understand this question. Can someone please show me how to work this question. Give the following polynomial, find a. the zeros and the multiplicity of each b. where the graph crosses or touches the x-axis c. number of turning points d. ...
*Tuesday, December 18, 2012 at 11:55am by Sammy-Please,please help!!!!*

**Chemistry- please check my work**

That's why we like to see your work. Seeing your work made me put those remarks in about the solids.
*Wednesday, February 25, 2009 at 9:54pm by DrBob222*

**Calculus POSTS please check**

Please check my calculus posts. They are at the bottom. Thanks.
*Wednesday, September 21, 2011 at 6:47pm by Anonymous*

**Physics - Check my work please :)**

Check this please :D Which of the following three statements used to describe work are true: i)Work is done only if an object moves through a distance ii)Work is done only if energy is transferred from one form to another iii)Work is done only if a force is applied In which of...
*Monday, December 12, 2011 at 10:57pm by Kellie*

**Calculus 2**

Calculus work problem. John bought the following corner lot. Two sides are bounded by 2 roads the back is bounded by a stream that follows the curve y = -x^3 + 8. He wants to build a house in the center of the lot. Where will that be? Please show all work
*Thursday, September 27, 2012 at 5:35pm by Laura*

**Calculus (Normal Line, please check my work)**

Looks to me like the slope is vertical at (pi,0) Therefore the normal is horizontal dy/dx of normal = 0
*Saturday, December 17, 2011 at 3:51pm by Damon*

**DUE AT MIDNIGHT PLEASE HELP- Calculus**

work = force * distance force = gm consider thin sheets of water of area 5*(y/4) where y/4 is the width across the tank at depth y So, the weight of the sheet of volume dV is 1000kg/m^3 * 9.8N/kg * 5(y/4)dy m^3 = 12250y * dy N Work = Int[0,4] 12250y dy = 6125 y^2 [0,4] = ...
*Monday, February 27, 2012 at 11:35pm by Steve*

**Calculus (Normal Line, please check my work)**

Using strictly the derivative (because wolfram isn't working for me), how can you prove that the slope of the normal line is 0?
*Saturday, December 17, 2011 at 3:51pm by Mishaka*

**PLease Check My Work**

3. T^2-25/t^2+t-20= (t-5) (t+5)/ (t-10) (t+2) 4. 2x^2+6x+4/4x^2-12x-16= 2(x+2) (x+1)/4 (x-4) (x+1) 5. 6-y/y^2-2y-24= 1/(y+4) *Please check them.- 3. (t-5)(t+5) / (t+4)(t-5) 4. 2((x-1)(x+2)) / 4((x+4)(x-1)) 5. (6-y) / (y+6)(y-4) i dont really understand what this is... but lol ...
*Thursday, February 22, 2007 at 7:31pm by Margie*

**Calculus (Normal Line, please check my work)**

Graph it to see as Steve suggested. By the way Steve, did you see the message from Bob Pursley?
*Saturday, December 17, 2011 at 3:51pm by Damon*

**Calculus**

Check your work, draw a graphical sketch to convince yourself that there is only one maximum. Also, f(2)=3, and f(-2)=-9, so (-2,-3) does not lie on the curve. If all fails, post your working for a check.
*Sunday, August 22, 2010 at 9:51pm by MathMate*

**calculus**

Work= INT Fdx = INT GMeMs/x^2 dx integrate from re to re+800,000m I will be happy to check your work.
*Tuesday, February 3, 2009 at 6:42pm by bobpursley*

**Pre-Calculus**

Find the values of x for which the line y=2x intersects the parabola y=(x-1)^2+1. So I set the equations equal to eachother, and solved for x using the quadratic formula. The solution I got was: x=3.41 and x=0.59. Could someone please check my work.
*Monday, September 20, 2010 at 12:21pm by Jon*

**Physics (Please)**

Newton ponder all this, and had to invent calculus to explain what was happening. Hold your questions until calculus, you will get the answer there. Work is in calculus terms, the integral of force *dx integrated over the path. Remember that, then in calculus, all your terms ...
*Monday, October 19, 2009 at 8:29pm by bobpursley*

**calculus-can someone please help me with this ques**

find the rate of change of f(x)=x^2+4 a. from -2 to 0 b. from 1 to 3 c. from -2 to 1 please show work
*Sunday, December 16, 2012 at 10:47pm by confused--Please help!!!!*

**Calculus (check my work)**

You realize I'm a terrible Calculus student? I don't understand the concepts that the other students can pick up on right away. I don't really get why you did any of what you did, and there aren't any examples like this one in our book for me to look back on.
*Tuesday, December 17, 2013 at 6:52pm by Lindsay*

**thermodyn. please check work**

2. does the temp of the nail not increase? 3. When you squeeze gas it gets hot. If you do it rapidly enough there is no time for heat to escape. 4. That did the gas do work on? 5. Again I do not see any work being done. 6. The steam expands through the turbine, losing ...
*Saturday, August 15, 2009 at 10:26pm by Damon*

**Math[PLease Check]**

Problem: 25-x^2 6 ------ * --- 12 5-x What I got: 5-x --- 2 *PLease Check My Work. No. Factor the 25-x^2 into two factors. Then the 5-x in the denominator divides out. So then is it: 5+x --- 2 yes. 12x12
*Saturday, February 24, 2007 at 6:12pm by Margie*

**calculus (check my work please)**

Try to simplify your "different answers". Probably your "different answers" is same solutions write in different form.
*Thursday, June 7, 2012 at 12:15am by Bosnian*

**Calculus (Check)**

This seems to easy. Check please. Find. Lim (x^2)-4 x->2 e I substitute in 2 (2^2)-4 e gives me 4-4 e So my answer is e^0 or 1.
*Friday, September 14, 2012 at 12:28pm by Greg*

**calculus - check question**

It depends on the figure which we do not see. Perhaps some information has not been transcribed. Please check.
*Thursday, March 10, 2011 at 9:39pm by MathMate*

**physics**

post your work, please, I will check it. Ahhh. did you work mass in kg?
*Monday, June 20, 2011 at 1:50pm by bobpursley*

**math**

the key...^=exponent QUESTION: What is 2^3-6x3^2 Can anyone help me please!!!! 2^3 is 8 3^2 is 9 I will be happy to check your work. is it 1? [[[help]]] u there No, of course not. Where is your work?
*Thursday, October 5, 2006 at 5:17pm by jessica*

**IT**

Please know that no one will do your work for you. If YOU post what YOU THINK, someone here will be happy to check your work.
*Monday, September 10, 2012 at 8:15am by Writeacher*

**Chemistry(Please Check)**

4,5,6 look ok. 1,2,and 3 I can't confirm. Show your work on those. I didn't check 7.
*Monday, April 23, 2012 at 11:56am by DrBob222*

**Spanish: Please Help**

No one will do your work for you ... but if you indicate what YOU THINK the answers are, we'll find someone to check your work.
*Wednesday, February 27, 2013 at 12:22pm by Writeacher*

**english**

No one here will do all your work for you. Please be sure to post what you think, and we'll be happy to check your work.
*Tuesday, January 29, 2013 at 12:29am by Writeacher*

**Calculus (Please check my work.)**

Thanks so much for pointing those things out! But I do have a question on #2? How'd you get the 6 for the maximum profit? I got the equation -4x^2+48x-18, but I couldn't get the 6. (It's probably some really stupid mistake. I make a lot of those. hahaha)
*Saturday, December 14, 2013 at 9:25am by Lindsay*

**geometry**

Alan -- please post your work. We're much more willing to check your work than to give you answers.
*Tuesday, October 2, 2007 at 10:11pm by Ms. Sue*

**Physics please check**

since work is done on the gas, the value of work has to be negative. so you would do 2531 + 1101 instead
*Sunday, April 15, 2007 at 3:01am by kat*

**Pre-Calculus-Please check**

Please check: 1.Find polar equation of x^2 + y^2 = 10y subbed r^2 for x^2 + y^2 and sin(theta sin for y =r^2=10sin(theta) 2. y=5 r=5/sin 3. x^2+y^2 =x^2 + y^2 =2x+3y
*Wednesday, October 5, 2011 at 6:56pm by Tonya*

**calculus**

find the rate of change of f(x)-x^2+4 a. from -2 to 0 b. from 1 to 3 c. from -2 to 1 please show work
*Thursday, December 13, 2012 at 8:58pm by confused--please help*

**Spanish-Please check my work**

Could someone please check this for me. I had to rewrite the following sentence using a direct object pronoun in two different ways. I wrote: Nosotros queremos leerlos. Los hosotros queremos leer. Thank you for checking
*Sunday, January 29, 2012 at 6:22pm by Jillian*

**calculus--please help!!**

Find the functions f&g so that fog =H H(x)=(3x+2)^6 please show work
*Tuesday, January 8, 2013 at 10:01pm by anonymous*

**pre-calculus-check over work**

all correct.
*Monday, April 21, 2008 at 10:21am by bobpursley*

**Calculus**

Thank you so much this definitely helps me double check my work!!
*Monday, April 18, 2011 at 1:28am by Amie*

**calculus**

f'=1/(x^2+1) *2x f"=2/(x^2+1)- 4x^2/(x^2+1)^2 check that. now, when is f" zero? f"=0=> 2=4x^2/(x^2+1) 2x^2=x^2+1 x=+-1 So pick three points, say x=-2, x=0, and x=2 and see what f" is, is it positive? Check my work, it is easy to make an error on a keyboard.
*Saturday, April 21, 2012 at 12:26pm by bobpursley*

**calculus-can someone please help me with this ques**

Given the following polynomial, find a. the zerros and the multiplicity of each b. where the graph crosses or touches the x-axis c. number of turning points d. end behavior f(x)=(x-1)(x-5) **please show work**
*Monday, December 17, 2012 at 1:04am by confused--Please help!!!!*

**calculus--please help!!**

Graph the function using transformations show your work and state. A. the domain b. the range c. the asymptotes f(x)=4-1/(x+6)^2
*Tuesday, December 18, 2012 at 3:56pm by Sammy-please help!!!!*

**math calculus**

see your other problem as an example. if necessary, I can check your work.
*Saturday, May 4, 2013 at 2:39pm by bobpursley*

**calculus-can someone please help me with this ques**

Given the following polynomial f(x)=(x-1)(x-5), find A.the zeros and the multiplicity of each one b. where the graph crosses or touches the x-axis c.the number of turning points d. the end behavior Please show work.
*Monday, December 17, 2012 at 6:13pm by Ladybug--Please help!!!!*

**math (please check my work)**

i got y=x-4 then can u please proofread that for me
*Tuesday, February 23, 2010 at 4:09pm by jerson*

**Physics-please check my work**

please?? this is due in an hour!
*Tuesday, December 11, 2012 at 2:57pm by Gavin*

**Calculus (Check)**

from the work that you show , I must assume you have Lim e^(x^2 - 4) as x-> 2 = e^0 = 1 you are correct
*Friday, September 14, 2012 at 12:28pm by Reiny*

**Calculus (check my work)**

I made that a lot harder than it needed to be but follow it and you will be able to shorten it.
*Tuesday, December 17, 2013 at 6:52pm by Damon*

**math-please check my answer**

0.6x + 4 < 1.0x - 1 6x + 40 < 10x - 10 4x > 50 x > 12.5 can someone please check my work and tell me if I am right?
*Friday, July 30, 2010 at 10:22pm by Michelle*

**algebra1**

the problem is 5f+7 less than or equal to 22. can anyone please work this out for me and check it for me? and what i mean by checking it is like when you get the answer you check it and make sure its write.
*Tuesday, October 1, 2013 at 5:57pm by erica*

**Calculus (Normal Line, please check my work)**

If dy/dx is very very large then -1/(dy/dx) is very very small
*Saturday, December 17, 2011 at 3:51pm by Damon*

**Math/Physics(Please check work)**

Please disregard. I figured out my mistake.
*Thursday, November 1, 2012 at 12:51pm by Hannah*

**Grammar ***CHECK MY WORK PLEASE*****

Is it C ? Please answer?
*Thursday, February 6, 2014 at 2:39pm by Jenny*

**Algebra**

I am having issues with factoring. I am trying to check my work using a TI84 Plus calculator but I don't know how to plug in a problem to check its factoring. Can anyone help? for example 44y^3+55y^2-11xy how can I go about plugging that in to check my work?
*Thursday, March 27, 2014 at 8:04am by Christopher*

**5 th grade**

can you please check my work. I got 585 is the median . i hope it right or if not please help me again!
*Tuesday, November 2, 2010 at 10:42pm by pat*

**Spanish-Please check my work**

Please see your later post, which I saw first. Sra
*Tuesday, March 8, 2011 at 12:30pm by SraJMcGin*

**Calculus (Normal Line, please check my work)**

Where did you get infinity? Using differentiation, I found that: dy/dx = (-4cosx) / (9(-siny)) When I put (pi, 0) into this equation, the denominator is 0, making the slope of the tangent line undefined. And since the slope of the normal line is -1/(slope of the tangent line...
*Saturday, December 17, 2011 at 3:51pm by Mishaka*

**Calculus **

Check my work please? Determine if f(x)= (x^2-3x+2)/(1+x^2) has a horizontal asymptotes. If so, give the equation. So I took x^2 and divided everything by it. (x^2/x^2)-(3x/x^2)+(2/x^2) / (1/x^2)+(x^2/x^2) Cancelled out some x's and have -(3/x)+(2/x^2) / (1/x^2) Now as x ...
*Friday, September 14, 2012 at 12:19pm by Greg*

**Science ~CHECK MY WORK PLEASE~**

Help please!!!!
*Tuesday, January 28, 2014 at 3:21pm by Wendy*

**Science ~CHECK MY WORK PLEASE~**

Help Please!!!!!!!!!
*Tuesday, January 28, 2014 at 3:24pm by Wendy*

**Calculus (Normal Line, please check my work)**

For the tangent line at (pi, 0), I find that the slope is 4/0, which is undefined. So, wouldn't this make the slope of the normal line undefined as well??? Did I miss something?
*Saturday, December 17, 2011 at 3:51pm by Mishaka*

**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.
*Saturday, December 22, 2012 at 10:54pm by Jimmy-can someone please help*

**Calculus (Normal Line, please check my work)**

One branch of the graph is an oval, and at (pi,0) does indeed have a vertical tangent. So, the normal line has zero slope. Line is just y=0 go by wolfram dot com and ask it to graph your equation. You'll see you were right.
*Saturday, December 17, 2011 at 3:51pm by Steve*

**Calculus**

Oh and show the work please!
*Sunday, February 26, 2012 at 12:23pm by Labiba*

**calculus**

f(x)=(9x^2–8)^6(4x^2–5)^11 Find f'(x) I got (9x^2-8)^6 *11(4x^2-3)^10*8x+((4x^2-3)^11)6(9x^2-8)^5(18x) but im doing something wrong can someone check my work please
*Wednesday, April 30, 2008 at 1:28pm by John*

**Calculus (check my work)**

Find the marginal revenue at x=10 using the equation R(x)=-x^2+80x Is the answer 60?
*Saturday, December 7, 2013 at 2:04pm by Lindsay*

**Please check-Reiny**

Could you check these two problems? 3sqrt (y+2) = 3 is y = 25 Answers were: true or false I said true because I did it like this Square both sides=y + 2 = 3^3 y+2 = 27 y = 25 and sqrt (2y-6) = 3-y for y answes are: no solution 5 3,5 3 I said 3 because I did it like this: 8y -...
*Tuesday, October 12, 2010 at 9:42am by Michelle*

**To Reiny**

Reiny could you please check my Calculus post below, it says Calculus--Reiny.
*Tuesday, October 4, 2011 at 9:29pm by -Untamed-*

**GP Caluculus**

Calculus, AP? caluculus, fouth, ration, are not words normally used by Calculus students. Choosing words, and checking the spelling, reflects on you personally. If you desire success, work on these types of details. You can do better than this. Given that a3 is 16, and a4 is ...
*Thursday, December 1, 2011 at 8:37am by bobpursley*

**Calculus-Differentials-Check please?**

Thank you!! :-)
*Tuesday, April 23, 2013 at 4:09pm by Anonymous*

**Calculus-Solved-Please Check?**

Thank you! :-)
*Tuesday, April 23, 2013 at 3:55pm by Anonymous*

**Chemistry**

George, how much of this do you know how to do? This is a lot of work for me just to check your answers and I don't want to work these if you already know how. If you have worked these, post your work and I'll be happy to check your answers. I can do that much faster than I ...
*Sunday, April 3, 2011 at 5:13pm by DrBob222*

**Math ~CHECK MY WORK~**

Thank You Katalina! And Damon I said check my work not give me the answer! But thanks anyway!both of 2
*Thursday, January 16, 2014 at 5:10pm by Wendy *

**Calculus - please check my work**

Any point on the plane will satisfy the equation. Since there are three variables x,y and z, you can fix any two variables and solve for the third. Example: Assuming arbitrarily y=6, z=6 => 5x+4(6)-3(6)=6 5x+24-18=6 5x=0 x=0 So (0,6,6) is a point on the plane.
*Monday, June 18, 2012 at 5:48pm by MathMate*

**chemistry-please check my work**

Determine the mass of carbon monoxide that is produced when 45.6 g of methane CH4 react with 73.2 g of oxygen gas, O2. The products are CO and H2O. Please check my work: CH4 + 3O2 ---> 2CO + 2H20 nCH4=2.84 mol nO2=4.58 mol Limiting Reactant: 1 mol CH4/2.84 mol CH4 = 3 mol ...
*Friday, May 23, 2008 at 7:34pm by Sarah H*

**Calculus **

Graph f(x) = 4^(x - 1) Please show work
*Sunday, November 6, 2011 at 10:43pm by Brett*

**Calculus **

Differentiate f(x)=(x^(3)-8)^(2/3) Please Show Work
*Sunday, November 6, 2011 at 10:47pm by Brett*

**Calculus - Derivatives**

Check your work above. There is an error in the value on the left side. Fix that before the next step.
*Wednesday, October 3, 2007 at 11:39am by Quidditch*

**calculus**

The area is (1/2)*2x * x^ = x^2 A(1) = 1 A(x) is unbounded for x>0 For the average value, integrate A(x) = x^2 from -1 to +1 and divide by 2. Looks like 1/3, but check my work.
*Tuesday, February 23, 2010 at 7:56pm by drwls*

**Calculus (check my work)**

Okay, I really don't understand how you did any of that. What's the point of half of it? I tried to do some of what you did, but I got different numbers for my answers.
*Tuesday, December 17, 2013 at 6:52pm by Lindsay*

**Eath Science**

I'm sorry. Please forgive me. Ms . Sue, Please check my work on Wednesday, July 20, 2011 at 9:34am. Thank you.
*Wednesday, July 20, 2011 at 11:19am by Priya*

**please check my work language**

-write the plural for each noun potato-potatoes shoe-shoes auto-autos speech-speeches -describe the kinds of information about words that can found in a dictionary *prononciation *parts of speech *definition and the word *how many syllabuls a word has is there anything else ...
*Wednesday, April 14, 2010 at 6:46pm by dena*

**chem- plz check my work**

I didn't check the math but the procedure is right. Good work.
*Wednesday, December 8, 2010 at 6:09pm by DrBob222*

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