Wednesday

April 16, 2014

April 16, 2014

Number of results: 83,537

**Calculus. Please!! i need help so bad!!!**

Post a New Question | Current Questions | Chat With Live Tutors Homework Help: Calculus. Please!! i need help so bad!!! Posted by heather on Tuesday, April 24, 2012 at 7:16pm. 1. Graph y =sec(1/2O-2pi)– 3. the O after the 2 has a slash through it 2. Write an equation for ...
*Tuesday, April 24, 2012 at 7:16pm by Anonymous*

**Calculus**

What is the simplest solution to the Brachistochrone problem and the Tautochrone problem involving calculus? (I know that the cycloid is the solution but I need a simple calculus proof as to why this is the case)
*Thursday, May 27, 2010 at 12:13am by Sam*

**calculus**

this is part of calculus cause i need it to find critical points of a graph
*Tuesday, November 18, 2008 at 5:39am by alice*

**calculus**

I need help with this calculus problem. H(S)=S/(1+S) If F 1/2, -1/2 & (a+1)? I can't figure out what this mean /?
*Monday, May 30, 2011 at 12:46pm by Tammy*

**calculus**

First of all, it is spelled calculus. Next, show your work so that we know where you need help. Okay?
*Sunday, February 17, 2008 at 7:11am by Guido*

**calculus**

I think you need a real tutor. You are asking questions that are fundamental to understanding calculus.
*Tuesday, June 28, 2011 at 11:26am by bobpursley*

**Calculus, bobpursley! **

This has to do with my last Calculus problem. I need help on it..The part I replied to after you answered the question.
*Tuesday, September 21, 2010 at 8:01pm by Leanna*

**Urgent help calculus**

you have a rectangle with height 5 and width 8-x. So, 5(8-a) = 20 8-a = 4 a = 4 No need for calculus here!
*Wednesday, November 28, 2012 at 11:40am by Steve*

**Calculus**

By the way there is no need to use calculus for these since you can complete the square to find the vertex of a parabola with algebra 2.
*Sunday, July 15, 2012 at 1:51pm by Damon*

**Calculus**

I need to take a college calculus class. Can someone direct me to a site which might help me get a good start? Thanks in advance.
*Thursday, July 10, 2008 at 3:38pm by jules*

**Calculus - Urgent!!!**

In case this looks familiar, yes, it is a repost. I really need help. Find the anti-derivitive of f(x)= x^3(x-2)^2. Multiple choice gives me the options: A: 1/6 x^6 - 4/5 X^5 + x^4 + C B: 1/6 x^6 - 4/5 X^5 + 1/4 x^4 + C C: x^6 - X^5 + x^4 + C D: x^5 - 4x^4 + 4x^3 + C I got as ...
*Thursday, April 26, 2012 at 5:18pm by In Need Of Help!*

**Calculus AP need help!**

Use Part 1 of the Fundamental Theorem of Calculus to find the derivative of the function. If f(x)= ∫(4,x^3)√(t^2+10) dt then f '(x).
*Tuesday, April 17, 2012 at 4:08pm by dania*

**Calculus**

Did you follow suggestion and sketch the lines? I see a triangle with vertices (0,0), (6,3) and (6,-6) You certainly would not need Calculus for this base = 9, height = 6 area = (1/2)(9)(6) = 27 If you have to use Calculus .... effective height = x/2 - (-x) = (3/2)x area = &#...
*Thursday, April 12, 2012 at 10:32pm by Reiny*

**calculus**

You do not need Calculus for this question, since this results in a trapezoid. The two parallel sides have lengths of 2 and 18 and the distance between them is 2 Area = 2(2+18)/2 = 20 if you insist on Calculus Area = [integral](8x+2)dx from 0 to 2 = |4x^2 + 2x| from 0 to 2 = ...
*Sunday, December 5, 2010 at 4:33pm by Reiny*

**Calculus**

I need help with integrals and I need help with the problem. Integral of 4/sqrt(x)dx
*Monday, April 11, 2011 at 9:30pm by Leanna*

**Math: Calculus**

I REALLY NEED HELP ANSWERING THIS. I mange to get b and c but i'm stuck on the other two
*Wednesday, November 3, 2010 at 11:14pm by NEED HELP!!!!*

**calculus**

Please help. I need ( with details) how to differentiate with the chain rule f(x)=(x^2-6x+23)^3/2. I need to
*Sunday, April 10, 2011 at 1:58pm by ben*

**Calculus**

Need an answer to this Calculus Question. I keep getting this type of question wrong. Thanks. Differentiate the Function: y = (3x-1)^2(2-x^4)^2 y =
*Monday, April 19, 2010 at 5:04pm by Dave *

**calculus**

I need help with calculus...
*Tuesday, October 28, 2008 at 12:46pm by mohamed*

**pre calculus**

You need to write out the question. I have no idea what "pre calculus" this could be, maybe zeroes, however, that is standard fare for an algebra course.
*Tuesday, December 10, 2013 at 6:26pm by bobpursley*

**pre calculus**

You need to write out the question. I have no idea what "pre calculus" this could be, maybe zeroes, however, that is standard fare for an algebra course.
*Tuesday, December 10, 2013 at 6:26pm by bobpursley*

**Calculus**

6 - 2x is a straight line with a negative slope. In the interval [-1,2], it is highest when x is smallest (-1) and lowest when x is highest (2). You don't need to use calculus to answer this question.
*Monday, November 16, 2009 at 5:51am by drwls*

**Grade 12 Calculus**

you don't need calculus for this. It can just confirm your answers. these are just ordinary parabolas. Find the vertex, and check the values at the ends of the intervals.
*Tuesday, April 16, 2013 at 12:15pm by Steve*

**calculus**

I need to find the critical number of 4x^3-36x^2+96x-64 by factoring. Basically I need to know the zeros.
*Monday, November 9, 2009 at 1:25pm by Matt*

**Calculus**

Sorry, I need more help! I am reallly struggling with Euler's method, and here's a problem I need help on: y'=2y + sin(x), y(0)=0, dx=0.1, the interval is 0 to 1, and f(x)= [e^(2x)-2sin(x)-cos(x)]/5
*Monday, December 18, 2006 at 10:44pm by Raine*

**calculus**

i need to find the derivative using chain rule and show steps: y= (x) / ((x^2)-1)^(-1/2) and is it possible to have free tutoring online like through a chatroom? i am in need of help
*Friday, January 10, 2014 at 5:44pm by eric*

**Calculus - Integrals**

Well, I think you just need to look at a simpler case. The algebra may sometimes obscue things. Also, you don't need to understand Lioville's theorem. Also, you don't need to stick to what you've been taught in class. All you need to do is pick up a piece of paper and try to ...
*Monday, March 24, 2008 at 12:53pm by Count Iblis*

**Calculus**

Hi there, I need help with composition of functions. I need to find fog, gof, gog, and fof and their domains for the following: f(x) = square root of 2x +3 g(x) = x^2 + 1 if someone can help me asap that would be so great!
*Wednesday, January 21, 2009 at 1:55pm by Lola*

**Applied Calculus**

I know how to solve it to get .21, but I need to write it using positive exponents only. I know this isn't technically Calculus, but it is what we are reviewing currently. I am a bit rusty with this one, can't quite remember how to do it. I am trying some different things, but...
*Thursday, March 21, 2013 at 1:33am by Jacob*

**college algebra--need help Please!!!**

Reiny, It seems like Calculus, but it actually falls under college algebra. Because I can get some calculus tutoring and the answers fit. Thank you for the help, it is greatlt appreciated!!!
*Monday, November 12, 2012 at 10:19pm by ladybug*

**calculus**

I need help simplifying this problem. f(x)=x^4/5(x-4)^2 f'(x)=x^4/5*2(x-4)+(x-4)^2*4/5x^-1/5 it is suposed to end up as this: 1/5x^-1/5(x-4)[5*x*2+(x-4)*4] but how do i get it to there? I need to see all the steps and how to get them. Thanks
*Tuesday, March 31, 2009 at 10:52am by Riley*

**Calculus**

drwls is right no need for calculus here but if youd like to use it f(x)=2(3-x) [-1,2] f'(x)=-2 no critical values therefore only test endpoints f(-1)=8 <--- abs. max (-1,8) f(2)=2 <---- abs. min (2,2)
*Monday, November 16, 2009 at 5:51am by Anonymous*

**calculus**

Your question is not clear at all. When you say "under" the graph of f(x) = 6x+1, the region would be infinitely large. You will need to close it. Is it bounded by the x-axis? If so according to your interval part would be below the x-axis and part would be above it. Make a ...
*Wednesday, December 8, 2010 at 12:32pm by Reiny*

**calculus**

Can't you answer any of these? If not, you need private tutoring. That is not what we provide here. Show us what you can do so we can see where you most need help, and someone will provide help with those areas.
*Sunday, December 6, 2009 at 5:41pm by drwls*

**CALCULUS!!! tangent lines**

If f(2)=4 and f'(2)=3, use the line tangent to the graph of f at x=2 to find a linear approximation for f(1.992) HELP! The only one I need, I need a Genius!!!!
*Tuesday, March 23, 2010 at 10:12pm by Anonymous *

**Calculus**

A vector perpendicular to both m and n is the cross product. After that, you only need to normalize it to make a unit vector. Post if you need more help.
*Thursday, May 24, 2012 at 10:51pm by MathMate*

**calculus**

Using Calculus: Area = ∫(x+3) dx from 8 to 15 = [x^2/2 + 3x] from 8 to 15 = 225/2 + 45 - 64/2 - 24 = 203/2 or 101.5 of course we don't need Calculus to do this, since the shape is a simple trapezoid at x=8, height = 11 at x = 15 , height = 18 distance between = 15-8 = 7 ...
*Saturday, October 1, 2011 at 3:51pm by Reiny*

**calculus**

Marlyn, I do not know if you have gone back to look at my detailed answer to your post on Dec. 5. http://www.jiskha.com/display.cgi?id=1260035879 If after reading the answer, you still have difficulties doing this current question, I must conclude that drwls is right. You need...
*Sunday, December 6, 2009 at 5:41pm by MathMate*

**CALCULUS. Check my answers, please! :)**

Thank you!! Unfortunately I couldn't wait for your response, but I went over my answers before checking to see if they were right, and I got them all right! Thank you so much for your help! It means the world to me, and will count on you if I need help on more topics in ...
*Saturday, October 5, 2013 at 12:24pm by Samantha*

**Pre-Calculus**

convert to the alternate form to exponential form. a) 5^4=625 b) e^x=y c) log.001=x I really need help on these problems i have no idea how to do it? pls help me i need to study for it on my exam.
*Friday, December 6, 2013 at 1:25am by Lane*

**Calculus**

I need help with these two review calculus problems for my final exam. What is the derivative of a). (5x^2+9x-7)^5 b). Lne^x^3 For a. I got 50x+45(5x^5+9x-7)^4 For b. I got 3x^2 Can you verify please?
*Monday, May 21, 2012 at 11:58am by Sam*

**Calculus**

You have to specify your domain. For log(x-1) you need x>1 For log(1-x) you need x<1 May times you will find it written that ∫ dx/x = log |x| + C just for this reason.
*Wednesday, January 8, 2014 at 4:04am by Steve*

**college algebra--need help Please!!!**

You can complete the square .... y = -(x^2 + 6x +9 - 9 = -( (x+3)^2 - 9) = -(x+3)^2 + 9 vertex is (-3, 9) alternate method: for y = ax^2 + bx + c the x of the vertex is -b/2a for for yours the x of the vertex is -(-6)/-2 = -3 sub into the function ... y = -9 + 18 = 9 so the ...
*Monday, November 12, 2012 at 10:19pm by Reiny*

**Calculus**

You must be kidding. You need to provide numbers in to get numbers out. If you want a formula, you need to define the symbols for the variables. The least you could do is provide the complete question.
*Friday, October 21, 2011 at 9:29am by drwls*

**calculus**

Need help with the following proof: prove that if lim x->c 1/f(x)= 0 then lim x->c f(x) does not exist.I think i need to use the delta epsilon definition i am not sure how to set it up.
*Sunday, July 26, 2009 at 4:32pm by jeff*

**Algebra**

In an interview of 50 math majors, 12 liked calculus and geometry 18 liked calculus but not algebra 4 liked calculus, algebra and geometry 25 liked calculus 15 liked geometry 10 liked algebra but neither calculus nor geometry 2 liked geometry and algebra but not calculus. Of ...
*Monday, January 11, 2010 at 8:45pm by Anita*

**Calculus 2**

Duplicate post, already answered. I gave you the formula for the total volume. If you want the volume at different heights, you have to say which level heights you want. That is where the need for calculus comes in. You must have mistyped something. You can't have two minor ...
*Tuesday, March 16, 2010 at 3:20am by drwls*

**calculus**

y=a(x-1500)^2+b is the form of the equation. you need to solve for a, b. Well, you know immediately that at x=1500, b has to be 25 Now, at x=0, you know y=450. Solve for a. Now, with a,b solve for y when x=750 What is the calculus in this?
*Friday, November 5, 2010 at 10:36am by bobpursley*

**Calculus Graph help!!!**

I need help with a calulus graph and figuring out its equation but it wont let me post the picture of the graphs here. so will someone who understands Calculus and their graphs super well please email me k m k underscore horse lover at hot mail dot com. no spaces and an actual...
*Wednesday, May 2, 2012 at 9:44pm by kelsey*

**calculus**

I need to repost
*Sunday, December 2, 2007 at 1:20pm by kelly*

**calculus**

So what do you need? the derivative?
*Friday, April 25, 2008 at 4:18pm by Damon*

**calculus**

I need help. i am so lost
*Tuesday, September 14, 2010 at 9:25pm by Preston*

**calculus**

please i need an example !
*Friday, April 15, 2011 at 2:32am by E.T *

**Calculus**

need derivative
*Friday, October 14, 2011 at 2:20pm by Beth*

**Calculus AP need help!**

thanks
*Tuesday, February 28, 2012 at 11:12pm by josephine*

**Calculus AP need help!**

You're welcome! :)
*Tuesday, February 28, 2012 at 11:12pm by MathMate*

**calculus**

I really need help on this!!!!
*Monday, October 21, 2013 at 8:25pm by anon*

**Calculus: drwls, please**

Hi, You need to draw f(x) =1/x first and then transform it to f(x) = (1/x) - 4 To draw f(x) = 1/x, all you need to do is find several points, example: let x=1, then f(1)=1, you get one point (1,1) let x = 0.5, f(0.5)=1/0.5=2, another point (0.5,2). Try to get 5-10 points and ...
*Friday, April 4, 2008 at 9:31pm by Qun*

**Calculus**

come on. even without calculus you know that the vertex is at (3,-1). With calculus, f' = 2x-6, and f is increasing where f' > 0
*Sunday, February 12, 2012 at 10:31pm by Anonymous*

**math**

8. In an interview of 50 math majors, 12 liked calculus and geometry 18 liked calculus but not algebra 4 liked calculus, algebra, and geometry 25 liked calculus 15 liked geometry 10 liked algebra but neither calculus nor geometry 2 liked geometry and algebra but not calculus. ...
*Monday, November 30, 2009 at 9:02pm by poo*

**Calculus**

You need to review your calculus. pdw ydy is the operand of the integral. INT pdw ydy= pdw int ydy= pdwy^2/2 evaluated over the limits.
*Saturday, October 24, 2009 at 11:12pm by bobpursley*

**Calculus**

I don't see why you need calculus for this, nor why they are calling the height 7h and the radius 4r. The differential volume of any cylindrical shell of radius r, height h and thickness dr is 2 pi r h dr Integrating that from r = 0 to the outside radius R will give you the ...
*Thursday, September 9, 2010 at 11:18am by drwls*

**CALCULUS**

really need help asap
*Saturday, September 26, 2009 at 9:05pm by kim*

**Calculus **

I don't get it..Do I need to plug in anything for x or no?
*Thursday, September 9, 2010 at 11:19pm by Anonymous*

**Math: Calculus**

f(x)=(x^3)/(x^2-36)
*Wednesday, November 3, 2010 at 12:03am by REALLY NEED HELP!!!!*

**calculus**

h(r)=1-r^2/2-r^3 find h'(1)
*Tuesday, January 10, 2012 at 12:07pm by scarlette. . .need help asap*

**calculus**

Need help for calcul: ( 1/2 ( -1 + i√3 )) ^2 thanks for your help
*Saturday, January 14, 2012 at 6:50am by Sébastien*

**calculus**

We need the given interval
*Friday, March 2, 2012 at 12:23pm by Dean*

**Calculus**

I did that and got 19. Is this right?
*Thursday, April 26, 2012 at 3:29pm by I Need Help*

**Calculus I**

This post was also placed at freemathhelp, on the calculus board with titled, "Calculus I". No work is shown at either location. Sad.
*Tuesday, September 2, 2008 at 4:53pm by Mark*

**CALCULUS - need help!**

I will be happy to critique your thinking on these.
*Monday, October 1, 2007 at 11:00pm by bobpursley*

**pre Calculus**

need the points not the equation
*Sunday, September 7, 2008 at 9:04pm by bill*

**pre Calculus**

need the points not the equation
*Sunday, September 7, 2008 at 9:04pm by bill*

**Calculus II**

i need help with long divison
*Wednesday, March 24, 2010 at 12:57pm by jessica*

**Math: Calculus**

I don't know why but the answer is wrong.
*Wednesday, November 10, 2010 at 1:00am by REALLY NEED HELP!!!!*

**calculus**

Verify this equation, y = 4^x-1 You need parentheses. Is it, y = 4^(x - 1)? Or, y = 4^(x) - 1? Or ?
*Sunday, January 30, 2011 at 1:44pm by helper*

**Calculus (pleas help I really need to check this)**

a) -6 b) -1/4 c) 1/2
*Thursday, February 17, 2011 at 7:24pm by Reiny*

**Calculus**

yes I know that but I need to steps for how you find the derivative.
*Sunday, October 2, 2011 at 7:20pm by Allison*

**Calculus. I need help!**

my worksheet say sin^5 x. well thanks
*Tuesday, February 28, 2012 at 2:00am by danny*

**Calculus. I need help!**

oops my bad.. 26(x^2-y^2)
*Friday, March 2, 2012 at 10:17pm by MILY*

**Calculus AP need help!**

f' = 3/x^2 f = -3/x + C f(1) = 0 = -3 + C f(-1) = 0 = 3 + C Typo somewhere?
*Sunday, March 25, 2012 at 7:08pm by Steve*

**Calculus**

I need to integrate ((e^-x)^2 - (-ex)^2)dx Can someone help?
*Sunday, May 6, 2012 at 6:36pm by Kira*

**Calculus**

What is the use of Calculus? How is it use in jobs? What jobs use Calculus? Calculus is used in engineering, economics, any physical science, and in business (e.g., actuary studies and statistics).
*Saturday, May 5, 2007 at 9:27pm by Anonymous*

**Calculus (Optimization, Still Need Help)**

I just wanted to correct something for my equation, it should be: V = (14 - 2x)(8 - 3x)(x), which simplifies to V = 112x - 44x^2 - 4x^3. Take the derivative: V' = 112 - 88x - 12x^2 Now all I need are the roots, any help? I think I found one around 1.10594, possibly?
*Friday, December 16, 2011 at 8:20pm by Mishaka*

**Calculus**

This is not calculus,it is beginning algebra. What is the point of labeling it calculus?
*Saturday, January 26, 2008 at 10:14pm by bobpursley*

**Integral Calculus**

A jeepney's velocity over time in ft/sec as it moves along the x-axis is governed by the function v(t)=3t^2-10t+15. If the jeep's position at t= 1 second is 8ft, what is the total displacement made by the jeepney from t=0 to t=5sec? please I need help, i just need the idea on ...
*Sunday, January 12, 2014 at 7:01pm by Lisa*

**Pre-Calculus/Calculus**

I am too embarassed to ask this Calculus (really pre-calculus) question in tutoring, because I know I should know. Is the inverse of f(x)=3x-1 actually f(x)=1/3x+1? How do I find it? What if it asks the same equation replaced with f to the -1 power (x)? I think I know how the ...
*Tuesday, July 1, 2008 at 10:38pm by Molly*

**calculus**

f(x)=(y+a)and b=the limit as y aproches 2+f=1000. I need to know what y and a equal.
*Wednesday, November 28, 2007 at 9:26pm by Roseliandystarajestarahjaesracritreah*

**Calculus-Optimal Form: need help... please**

thnx! :)
*Tuesday, November 4, 2008 at 7:46pm by Stephanie*

**ap calculus**

yes i need help can you solve it out then i will ask you questions from then
*Saturday, September 26, 2009 at 8:20pm by kate*

**calculus**

f(x)=ln(x^4+27) find the inflection points?
*Monday, April 5, 2010 at 10:24pm by NEED Help*

**Calculus**

I just need help getting started with this one.
*Tuesday, September 14, 2010 at 9:25pm by Preston*

**Calculus **

Oh wait I made a mistake..still need help! Thanks.
*Thursday, October 28, 2010 at 8:24pm by Anonymous*

**Math: Calculus**

This website doesn't help me in solving my question.
*Thursday, November 4, 2010 at 4:28pm by REALLY NEED HELP!!!!*

**Math: Calculus**

This website doesn't help me in solving my question.
*Thursday, November 4, 2010 at 4:32pm by REALLY NEED HELP!!!!*

**Math: Calculus**

Never mind i got it.
*Thursday, November 11, 2010 at 2:42pm by REALLY NEED HELP!!!!*

**calculus **

i need a real life application on parabola.
*Monday, May 16, 2011 at 6:25pm by Reem*

**calculus**

I need a better more indepth answer
*Friday, October 26, 2007 at 12:14am by fool*

**calculus**

Hi i need help for calcul with a Moivre's theorem: ( 1/2 ( -1 - i√3 )) ^3 thanks for your help
*Tuesday, January 24, 2012 at 12:44pm by Sébastien*

**calculus**

I need help finding the derivative of (x^2+sinx)secx
*Tuesday, February 21, 2012 at 5:19pm by jholm*

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