# Calculus (repost)

17,965 results

### repost Calculus

the length of the curve of intersection of the cylinder (4x^2) + y^2 = 4 and the plane x + y + z = 2 I'm so lost. Any help is appreciated!

Can someone help me solve this problem: cos^2x + 5cosx - 2= 0 I am having some trouble finding x

### question repost damon

Since some tutors don't check back, i want to repost this to damon: what percent more than 1/3 is 3/5? It said 3/5 was wrong, and I tried but i don't know what happend

### Bobpursley can you help me with my problems below?

I had problems from yesterday but I still don't get them can you help?do you want me to repost? repost: I cant find them.

### Calculus - repost

Find the derivative of F(x)= integral from -2 to x of sqrt(t^3+8)dt? My answer: sqrt(x^3+8)? Is this right?

### Science [repost]

What is the difference between an ionic bond and a covalent bond? I just keep forgetting which one is which...any easy way to remember these? PS> I know that you're not supposed to repost until 24 hours but I really need this answer! Thanks -MC

### english

Homework Help Forum: brain teaser help Current Questions | Post a New Question Answer this Question | Further Reading Posted by sam on Sunday, April 2, 2006 at 3:34pm. try to find the error. I couldn't; it's very hard. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z did ...

### Calculus (repost)

Find the limit: lim {[1/(2+x)]-(1/2)}/x as x->0 How do you remove the complex fraction??? (or just complex fractions in general, I have trouble with them...) Thank you!

### Repost- Already Solved-Calculus

is the inverse function of x+ floor(x) equal to x - floor (x/2) i got this after plotting points but i'm not sure. thank you Thank you 'gain!

### Calculus (repost)

Use implicit differentiation to find dy/dx if cos xy = 2x^2 - 3y. I'm stuck on this problem because I'm getting thrown off on how to factor this. Here's my work so far: -{[(dy/dx)y + y]sin xy} = 4x - 3(dy/dx) -{[(dy/dx)y + y]sinxy} + 3(dy/dx) = 4x ...now what? Thx

### CALCULUS (REPOST)

If dy/dx = x (cos x^2) and y = −3 when x = 0, when x = pi, y = . A. −3.215 B. sqrt(2) C. 1.647 D. 6 E. 3pi For some odd reason, I keep getting -0.5325989. I can't come up with any of the answers given.

### 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 ...

### history

on the 1st page can someone please help me??????? Its the 2nd and 3rd black dot next to my nasme. Even if this is a repost, more information needs to be given before we can adequately respond. Please repost with more information. Thanks for asking.

### History *repost* (sorry!)

After the Gupta Empire collapsed, what group gained control of much of India? Muslims from Afghanistan Buddhists from China*** Christians from Ethiopia local Hindu princes Which of the following was NOT a part of the organization of the early Christian church? the pope the ...

### algerba!2!

(-2x2y)3 * (5xy3)2 *I don't get this on at all!!! Are there any exponents in this one? If so, repost showing the caret to indicate the exponent. oh sorry I forget to do that.LOL!Here it is now: (-2x^2y)^3 * (5xy^3)^2 Are there any exponents in this one? If so, repost showing ...

### To Lynn,Alex,Physics_student,Natasha

Please refrain from reposting the same question within a short time (less than a day). If you do repost, add "repost" at the end of the subject. Quadruple posting within an hour and a half means that teachers have to spend time reading the extra posts, which actually slows ...

### Calculus (repost)

This problem uses a TI-89 calculator) Find the largest and smallest values of the following function on their given intervals: y=(cos x)^x [-1.5, 4.75] This is what I put in the calculator (home screen): fMin((cos(x))^x,x I -1.5 < x < 4.75 (I = "with" symbol, < is ...

### calculus repost, please assist pleassssssse

Hi Trying to work with confusing Taylor series....any assistance would be much appreciated!! How can I use T(x)=5-9((x-2)^2)-3((x-2)^3) to approximate the f(0) ???? I realize that Taylor series f(x)=f(a)+f'(a)(x-a)+f''(a)((x-a)^2)etc... but the above T(x) is centered at x=2, ...

### chem -repost for bobpursley

i don't know how to solve this. looked through all my notes but i'm not sure what kind of formula i am to use or if i even need one! please help me to understand the theory behind this: "calculate the work need to make room for the products in the combustion of S8(s) to SO2(g...

### Science [improv/repost]

What is the difference between an ionic bond and a covalent bond? I just keep forgetting which one is which...any easy way to remember these? PS> I know that you're not supposed to repost until 24 hours but I really need this answer! Would this answer work?: In an ionic ...

### physics, error calculation repost

I need to derive an error equation for Bohr's model to use in my physics lab this week. I am really bad at calculus, so if anyone can help me that would be really great. the equation is (1/lambda)=R[(1/n^2final)-(1/n^2initial)] I've never had to derive anything like this ...

### Pre-Algebra [repost]

I'm sorry I had to repost, but this is urgent and i need it done by today!! Can someone please show me how to do these problems? I've been trying but I'm having a hard time... 1.Simplify the expressions on each side of the equation to obtain an equivalent equation: 5x + 12 + ...

### Repost Repost Bio

I asked this, and didn't get a very helpful response. Question: hi, i did this lab, from this website and I was wondering if anyone could come up with 3 sources of error, and they can't be human error. Thanks! You are saving me! Seeing as I am not allowed to post to the ...

### Just a repost, in case the old isnt seen

sorry! I never noticed..the mass should be 52000kg sorry about that! For Further Reading physics repost - Alexis, Sunday, October 14, 2007 at 6:07pm so it should be a 52000kg train slows from 25 m/s to 14m/s in 5.0 s. Calculate the work done on the train. so I found the ...

Please help out. Thank you. A right triangle has one leg on the x-axis. The vertex at the right end of that leg is at the point (3,0). The other vertex touches the graph os y=e^x. the entire triangle is to lie in the first quadrant. Find the maximum area of this triangle....

1)

y =x+2 y =x^2

### Calculus

Posted by CMM on Wednesday, October 13, 2010 at 12:50am. Calculate the following: a) Find g(f(1)) b) Find lim x-> 1+ g(f(x)) c) Find f(g(0)) d) Find lim x->0- f(g(x)) f(x)= 1-x, x<1 1, x=1 x-1, x>1 g(x)= -x, x<0 2, x=0 x+2, x>0 This is where it gets hard. I ...

sorry for repost ~C

### math (repost)

if f(x)=2x-1 and g(x) 1/2 (x+2) calculate a)f(3) now if 2(3)-1=5 how do i find for gf(3)????

### algebra repost

simplify radical sqrt a^10

### To Danii

I cannot read your 11:55 post. Can you repost it here?

### english

sorry i havent really used this site and im not sure how to repost my question instead of putting it as an answer to my question so heres the repost: I had to find embedded clauses I deplore the fact that bats have wings. --> bats have wings That Guinevere loves Lorian is ...

### Abby

Please repost your question, I accidently deleted it.

### 6TH GRADE MATH

Repost perimeter is 30 and area 36

### algebra 117

repost sorry about that (k^1/8)^-4 oer(k^7)^1/2

### math

repost find unknown number in the equation 9/10 - x = 1/5

### 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 ...

### History opinion repost for Kate

Is the Bayeux Tapestry an accurate source? Why or Why not?

### Math (repost)

Given f(x) and g(x)=f^-1(x). If f(1)=4 and f'(1)=-3, then find g'(4). ...No idea where to start with this. Please help? Thanks much!

### Algebra(repost of one question)

Bobpursley: 89. Solve for x in the equation: (6/7)x - 6 = -2 I got x=28/3

### Algebra (repost)

Can you help me on this problem as well? (or anyone.) Solve each inequality and check your solution. h - > -7 4 (bumping)

### Finite Math

Fifty percent of students enrolled in calculus class have previously taken pre-calculus. Thirty percent of these students received an A for the calculus class, whereas twenty percent of the other students received an A for calculus. Find the probability that a student selected...

### Repost 2 PLz Help

6-y/y^2-2y-24=? *I don't get it at all!!! You need parentheses around portions of this thing so we know what the problem is.

### Algebra

|a+2 3z+1 5m|+|3a 2z 5m|=|10 -14 80| |4k 0 3 | |2k 5 6| |10 5 9| I needed to repost this. This is a matrice and I am trying to find the values of the variables in each equation.

### Repost of history

Why did the Soviet Union support Turkey in the Greco-Turkish War?

### ethnics help

sorry to interrupt is someone available for help. Please repost with your question, and we will do our best to help. Thanks for asking.

### Science repost for help

Sciece (chemistry) - help, Tuesday, September 25, 2007 at 4:32pm what is the particle theory

### REPOST biochem

i don't understand this why can carboxyl and phosphate groups act as acids? as in, what makes an acid?

### Spanish - repost for anon

https://www.jiskha.com/display.cgi?id=1508350859

### 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).

### egg protection

how can i protect an from a 6m fall and make it go 3m please look at your question. It makes no sense to us. Repost it

### Science - Repost for ?????

which moon is the brightest from the surface of jupiter? this question is driving me BLOODY crazy 4 my homework!

### repost

bobpursely, I posted at 709 from our previous dialogue, can you please help me again? Much appreciated!

### physics repost

Calculate the force of gravatational attraction between two spheres of mass 10.1 kg and 45.4 kg that are 38.5 m apart. F = G(m1)(m2)/r^2 = 6.67 x 10^-11(10.1)(45.4)/38.5^2 = 2.06 x 10 ^-11 N

### To Happy --

Please repost your math question -- and remove Ms. Sue's and my screen names from YOUR NAME'S space. Thanks. =)

### Grammar [Repost]

Is this an adverb phrase? The tangy scent of barbeque drew us TOWARD THE LITTLE CAFE. Thanks -MC

### algebra repost

Simplify each expression. Assume all variables represent nonzero real numbers. -40^0- 30^0

### math

2Tons=____oz Try the method DrWLS or I showed you. Then repost if you don't understand but tell us what you are having trouble with.

### English

Bloom's taxonomy, anyone? (Yeah, it's a repost.) Anything found on the wiki or the first page of google I've tried.

### chemistry [repost]

In a recrystallization of vanillin, can you purify a substance whose solubility decreases as the temperature increases? Any help is appreciated!

### physics repost

A 1.00-kg ball is attached to a string of 0.50 m and swung in a horizontal circle with a velocity of 2.00 m/s. Find the centripetal acceleration. ac=v^2/r = 2.00^2/.50 = 8.0 m/s^2

### To "Cutie..."

Please choose a better "First Name" -- make sure it's not offensive in the least! Then repost your question. Thanks. =)

### MzLynn - auditory learning

Your post has been removed. We'll be glad to help you if you repost it along with your attempts to answer the questions.

### Physical Science

if you tear a piece of material in haft, how is the density affected? sorry i repost it, just the title

### calculus-repost-thanks

Is this correct? determine if absolutely convergent and convergent 1. the series from n=0 to infinity of ((-1)^n)/n! I said it was abs. conv, and therefore conv 2. the series from n=0 to infinity of (-1)^n/(the square root of (n^2+n+1)) I said ratio test was inconclusive so ...

### To Ray -- college

I've removed your biotechnology post. Please repost it with your thoughts about completing it and specifically how you would like us to help you.

### math repost

name two numbers with decimal hundredth that round to the same whole number but different tenths.

### French for Anonymous/E.G.

If you go back before the "repost" I found the first post just now! There is an answer there. Sra (aka Mme)

### To Sha -- Child Development

I've removed your lengthy post asking you to comment on a complex scenario. Please repost with your analysis of this situation. We'll be glad to help you then.

### Math(repost of #2 of last ?)

Write XY(with line over it) as the sum of unit vectors for X(8,2,-9) and Y(-12,-1,10). There's an example just like this in my book but I really don't understand it.

Determine if the following substances are soluble (at room temperature, 1 atm) in water or in hexane (: grease and CS2 how do you know this

### Chemistry

Repost:: sorry couldn't understand it What is the concentration of C2O4^-2 in a 0.370M oxalic acid solution? Ka1=5.6x10^-2 and Ka2=5.1x10^-5

### Repost(Physics)

A vehicle moves in a straight line with an acceleration of 2 km/h^2. By how much does the speed change each second? Answer in units of km/h. Plz help?

### Calculus

Hellp I have a calculus test on Monday 2. Calculate the slope of the tangent to the given function at the given point or value of x a. f(x)=3/x+1,P(2,1) b.h(x)=2/squareroot x + 5, P(4,2/3) ****Full solutions to please because I do not know what I'm doing and so confused with ...

### Science

I don't noe ne thng about fluids. HELp..my test is in two days If you repost your question and spell the words right, I'll help you. lol pwnT

### Repost: Biology!

What would be the consequences of the following be on photosynthesis? These are the only ones I am stuck on! a.) Photosystem I is not functional b.) NADP+ is not present in the thylakoid space

### physics repost

Which of the following physical properties can be used to measure temperature using a thermometer? A)volume B)pressure C)density D)viscosity I got A

### True or False econ repost

Relative PPP is a better approximation of reality when one of the two countries is suffering hyperinflation and the other is not.

### Pre-Algebra [repost for Reiny]

In my last post for #1, I asked my teacher and she said that it's actually k=30 . Could you have gone wrong somewhere? That's the only one. -MC

### government

describe a hypothetical situation in which collective naturalization might be applied? We do not do your homework for you. However, if you will repost your answer, we will be happy to proofread and give suggestions.

### To: Troyer0269 - Sci245

I've removed both of your science posts. Please repost when you can tell us what you've done so far to fulfill these complex assignments and where you specifically need our help.

### To: Computer -- Cultural Diversity

I've removed your post with the complex assigment about subordinate groups. Please repost it and tell us what you've already done on this assignment and how we can help you complete it.

### Algebra - Repost

Hello, I am reposting with correct ASCII format with my answer: (4x^5y^6z)2^ X (5x^9y^12z)3^ (16x^7y^8z^2) X (125x^12y^15z3^) 2000x^19y^23z^5 Thank you

d+7/d^2+49= / (d+7) (d+7)*I got the bottom but I don't know what to put at the top...please help!!! answered below

### physics repost

Calculate the sound level in decibels of a sound wave that has an intensity of 2.25 µW/m2. F

### Repost physics

PLEASE SOMEONE HELP ME!! I POSTED DOWN AT AROUND 10 something!! PLEASE!!! I NEED HELP!!!

### physics repost

sorry! I never noticed..the mass should be 52000kg sorry about that!

### S.S. Repost for Brittani

S.S. - Brittani, Friday, October 26, 2007 at 5:47pm Where are charges for the impeachment made?

### MATH Introduction to Math Skills and Strategies

Evaluate when x+y/3 when x=17 and y=4 sorry had to repost the question thank you

### 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 ...

### Physical Science

According to the well known equation, energy equals mass times the speed of light squared..... ? You question is unclear. Please repost with more specifics.

### CHEMISTRY REPOST

Calculate the concentration, in percent by mass, of a refrigerant brine solution which is 4.03 M in NaCl with a density of 1.116 g mL-1. detailed answer, please, i don't understand how to do this at all!!!

### Repost repost physics

Posted by Meredith Mcneeds Help! on Monday, November 19, 2007 at 8:08pm. Hey, ok so I am supposed to be helping my cousin this with this physics problem, and this is the only one that has ever stumped me! Neutral metal spheres A and B each of mass 0.2 kg hang from insulating ...

### english

rearrange thes letters into one word Imbillie, you did not give us the letters... please repost.

### Math repost for Spenser

History - Spenser, Wednesday, October 10, 2007 at 1:33pm Find the center and radius of x^2 + y^2 - x + 2y - 3 = 0

### Math repost for Samantha

Maths - samantha, Wednesday, October 10, 2007 at 3:24pm how do you graph linear equations?

### physics repost

A force of 200 N acts on a 7.20-kg bowling ball for 0.350 s. Calculate its change in velocity. 7.20/0.350 = 20.57 m/s

### physics repost

Venus has radius 6.05 x 10^6 m and mass 4.87 x 10^24 kg. Calculate the value of acceleration due to gravity on Venus's surface. don't know this one