Wednesday

January 28, 2015

January 28, 2015

Number of results: 3,268

**CALC-LIMITS**

F(X)= x-2/(x^2-4) is continuous at x=1 and why as limits approach from 1+ and 1-
*December 19, 2012 by daryl*

**AP Calc (Limits on Piecewise Functions)**

I'm trying to find the left, right, and overall limits of this function without using a calculator. Any help/suggestions on how I'm supposed to do this would be very helpful! f(x){ sinx if x<pi/6 tanx if x=pi/6 a=pi/6 cosx if x>pi/6
*January 17, 2015 by Pax*

**calculus (limits)**

lim h>0 sqrt(1+h)-1/h not sure how to factor this; not allowed to use L'Hopital's Rule. (that isn't taught at my school until Calc II & I'm in Calc I).
*January 22, 2011 by John*

**AP Calc (Limits on Piecewise Functions) #2**

I need help trying to find the left, right, and overall limits for this piecewise function without using a calculator. f(x) = { sin(x/3) if x≤pi , (x√ 3)/(2pi)if x>pi} when a=pi
*January 17, 2015 by Pax*

**Calc Limits**

lim (1+x)^1/x. Give an exact answer. x->0 This reads: The limits as x approaches zero is (1 plus x) to the 1 divided by x. The log of each term is (1/x) ln (1 + x) = ln (1+x)/x Using L'Hopital's rule for the limit of f(x)/g(x), the limit if the log is lim f'/g' = lim [1/(1+...
*February 16, 2007 by Robert*

**Pre Calc.**

Use limits to describe the behavior of the rational function near the indicated asymptote f(x)=3/x-4
*November 1, 2010 by L.*

**calc helppppp**

use limits to find and verify all asymptotes in the graph y= sqr root (5+x^2)/(3-x)
*February 12, 2012 by adrina *

**Calc.**

For the function ƒ(x) = x^3 - 8x + 3, calculate where a = 5 and h = 2. Simplify before substitution (the simplifying is where I am having problems...not sure if my answer is right). Thanks. Using the limits equation.
*July 14, 2008 by Derek*

**Calc 3**

How do I integrate rcos2theta dr? and then I have to plug in the limits 1 and 2sin2theta for theta and plug what I get from that into a second integral. Help!
*April 22, 2011 by Samantha*

**AP Calc.**

I'm working on Proofs for Limits. So my question is how the bloody hell do I do this. This is the equation I am working with: F(x)= (x^2-5x+8)(x-3)/(x-3) Use the limit properties to prove algebraically that limf(x)=2 as X approaches 3
*October 3, 2007 by Chii*

**Calculus**

We are doing limits in Calculus, but now we are doing trig limits too and i do not get how to do any of them. For example ones like this, how do you do them? sec (x-1) / (x sec x) x approaches 0 ((3 sin (x)) 1 - cos(x)) / (x^2) x approaches 0 (sin (2x)) / (sin (3x)) x ...
*September 28, 2008 by Michael*

**calc**

Let g and h be nonnegative functions with limits 1 and infinity, respectively, as x → a. What is the limit of the function below as x → a? If it cannot be determined, write the indeterminate form. (9 + g(x))^−h(x) I don't understand, please explain!
*July 15, 2012 by Anonymous*

**u.s. history**

How does the constitution limit the powers of government? A. The constitution limits the power of government by entitling citizens to a basic standard of living. B. The constitution limits the power of government by giving citizens the power to veto any bill they do not ...
*November 13, 2014 by happy*

**calculus (limits)**

Use limits to explain why f(x)= (7-3X)/(X+9) has a vertical asymptote.
*January 21, 2012 by k*

**limit calc question**

2 questions!!! 1. Limit X approaching A (X^1/3-a^1/3)/ x-a 2. LiMIT x approaching 0 (1/3+x – 1/3) /x On the first, would it help to write the denominator (x-a) as the difference of two cubes ((x^1/3 cubed - a^1/3 cubed) second. use LHopitals rule. Take the derivative of the ...
*March 2, 2007 by kev*

**AP Calc (Limits)**

I'm trying to factor this equation in order to find its limit, but I'm not sure how to go about it. I can get the answer by graphing on a calculator but I need to do it without one. Function: F(x)=(x^2-36)/(sqrt(x^2-12x+36)) left, right, and overall lim as it approaches 6
*January 17, 2015 by Pax*

**Statistics**

Multiple Choice Which of the following statements is true about the 95% confidence interval of the average of a sample? A) 95 of 100 avgs of samples will be within the limits of the confidence interval. B) There is a 95% chance the avg of the population to be within the limits...
*July 26, 2013 by Andrew*

**Calc 121**

How do you integrate using substitution: the integral from 1 to 3 of: ((3x^2)+(2))/((x^3)+(2x)) There is a trick to this one that grealy simplifies the integral. Let u = x^3 + 2x. Then du = (3x^2 + 2)dx The integral then bemoces just the integral of du/u, which is ln u = ln (x...
*April 21, 2007 by Me*

**Calculus please help!!! double integral**

Combine the following two integrals into one by sketching the region, then switching the order of integration. (sketch the region) im gonna use the S for integral sign..because idk what else to use. SS6ycos(x^3-3x)dxdy+SS6ycos(x^3-3x) And the first integration limits for x are...
*March 22, 2012 by Sean*

**Maths Calculus Derivatives & Limits **

Using the definition of the derivative evaluate the following limits 1) Lim h---> 0 [ ( 8 + h )^1/3 - 2 ] / h 2) Lim x ---> pi/3 ( 2cosx - 1 ) / ( 3x - pi)
*October 25, 2011 by Yousef*

**double integrals**

Combine the following two integrals into one by sketching the region, then switching the order of integration. (sketch the region) im gonna use the S for integral sign..lol SS6ycos(x^3-3x)dxdy+SS6ycos(x^3-3x) And the first integration limits for x are between -1 and y, for y ...
*March 21, 2012 by Mary*

**Calculus**

TWO examples of each of the following: two sided limits and theorem on limits (SUM, difference, product, quotient, nth root, ).
*August 29, 2012 by Anne*

**Math**

I'm in Calculus AP and we are learning about limits. I'm having trouble with finding limits algebraically. So here's a sample that you can use to help explain this to me. Find the limit of lim x (arrow to the right) 1 x-1/x(squared)-1. Please help!
*September 5, 2011 by Michael*

**Maths (limits)**

how do i evaluated these limits: lim x --> 3 ((square root of x^2 +16)- 5)/(x^2 - 3x) lim x--> to infinity (2+ 100/x)
*February 17, 2010 by Ren*

**Calc**

A metal cable has radius r and is covered by insulation, so that the distance from the center of the cable to the exterior of the insulation is R. The velocity v of an electrical impulse in the cable is v = -C(r/R)^2*ln(r/R) where c is a positive constant. Find the following ...
*December 2, 2009 by Greg*

**Math Limits **

(x^n-1)/((x-1) )=(x-α^1 )×(1-α^2 )×………..(x-α^((n-1)) ) How do we prove that n = the multiplication of the second term using limits and l'hopital's rule.
*February 28, 2013 by Blah*

**Calculus**

TWO examples of two sided limits and each theorem on limits.
*August 29, 2012 by Nicole*

**calc: avg value**

Find the average value of the function "f(x) = x^2 sqrt(1+x^3)" on the interval [0,2]. and this is what i did.. please check for mistakes. thanks :D f(x) = x^2 sqrt(1+x^3), [0,2] f ave = (1/(b-a))*inegral of a to b for: f(x) dx f ave = (1/(2-0))*integral of 0 to 2 for: x^2 ...
*July 2, 2007 by COFFEE*

**math**

i need some serious help with limits in pre-calc. here are a few questions that i really do not understand. 1. Evaluate: lim (3x^3-2x^2+5) x--> -1 2. Evaluate: lim [ln(4x+1) x-->2 3. Evaluate: lim[cos(pi x/3)] x-->2 4. Evaluate: lim x^2+x-6/x^2-9 x--> -3 5. ...
*July 13, 2010 by Dani*

**Legal Environment of Bus**

Ethics Question (Legal Environ of Bus)? Various industries have lobbied for legislative restrictions on tort liability. The nuclear power industry has long been protected by a statute that limits its upper-dollar liability in the event of a serious accident. Many companies in ...
*March 4, 2012 by shirley*

**Absolute Value and Limits**

solve for limits of 1+ and 1- for this function: (x^2 + abs (x-1) - 1)/ abs (x-1) i dont know how to simplify abs. value expression times polynomial. can someone please help.
*March 13, 2013 by Angie*

**consumer math**

amy miller's insurance policy has a $218.00 premium for 25/100 bodily injury limits and $25,000.00 property damage limits. the collision premium is $74.00. amy's driving-rating factor is 2.4. what is her annual premium?
*February 25, 2013 by dylan*

**stats**

4. Data from the 2008 General Social Survey (GSS) sample show that the mean number of children per respondent was 1.94 with a standard deviation of 1.70. A total of 2,020 people answered this question. (a) Estimate the population mean number of children per adult using a 90% ...
*July 26, 2012 by taylor quenzler*

**Calculus**

Following 2 questions are from a book at a point where L’Hopital’s Rule, Squeeze Theorem etc. have not been discussed and limits (A) and (B) as given below are to be evaluated by simple methods like algebraic simplification etc. 1. Int. of (xlogx)dx from 0 to 1. Indefinite Int...
*March 12, 2014 by MS*

**Calculus**

Following 2 questions are from a book at a point where L’Hopital’s Rule, Squeeze Theorem etc. have not been discussed and limits (A) and (B) as given below are to be evaluated by simple methods like algebraic simplification etc. 1. Int. of (xlogx)dx from 0 to 1. Indefinite Int...
*March 13, 2014 by MS*

**Statistics**

Construct the appropriate control chart for the observations listed below, using 3 sigma limits. Product Number - Number of defects 1 - 3 2 - 3 3 - 6 4 - 5 5 - 3 6 - 5 7 - 2 8 - 2 9 - 3 10 - 4 11 - 6 a. Determine the upper and lower control limits. b. Discuss the chart you ...
*January 30, 2009 by Johnny*

**intro to computers**

your boss is considering a BYOB program for your company. he asks you if there are any negatives to such a program. what do you tell him? a.it limits the freedom of the user to access the websites and applications.b.it introduces security and control problems. c. it requires ...
*October 30, 2013 by mary*

**into computers**

Your boss is considering a BYOD program for your company. He asks you if there are any negatives to such a program. What do you tell him? A. It limits the freedom of the user to access websites and applications. B. It introduces security and control problems. C. It requires ...
*November 20, 2013 by Ava*

**Calc. Limits**

Are these correct? lim x->0 (x)/(sqrt(x^2+4) - 2) I get 4/0= +/- infinity so lim x->0+ = + infinity? and lim x->0- = + infinity? lim x->1 (x^2 - 5x + 6)/(x^2 - 3x + 2) I get 2/0, so lim x-> 1+ = - infinity? and lim x->1- = + infinity? lim h->0 [(-7)/(2+h^2...
*October 13, 2010 by Chelsea*

**Calculus 1**

Write a function that has two infinite limits at two different x-values. Write a function where both one sided limits exist at some x value but the two sided limit do not. I don't understand how this would look, please help!
*January 13, 2015 by Roger*

**Studying for Calc**

I have a quiz on derivatives coming up and I really want to do well, but i'm not sure how to go about studying calc. i have no trouble studying for other subjects, but i'm doing poorly in calc and i need to make some changes in my study habits. any suggestions? i usually work ...
*October 7, 2008 by Elizabeth*

**MATHS**

A CONE WAS CONSTRACTED FROM PLASTIC, HAVE A HEIGHT OF 20cm (PART C). THE LID IS MADE UP OF HEMISPHERE HAVE RADIUS 0F 5cm (PART A) AND PYRAMID HAVE VOLUME OF 81,667cm³. THE LID FITS EXACTLY OVER THE CONE. A) CALC. THE VOL. OF PART A. B) CALC. THE VOL. OF PART C. C) CALC. THE ...
*August 9, 2010 by MTHOMBENI BAFANA*

**Introduction to computers**

Your boss is considering a BYOD program for your company. He asks you if there are any negatives to such a program. What do you tell him? A. It limits the freedom of the user to access websites and applications. B. It introduces security and control problems. C. It requires ...
*November 7, 2013 by Lisette*

**Pre-Calc/Calc**

Which set of parametric equations corresponds to this rectangular equation? y=2x-(x^2 / 10) A. x=4t, y=4t-(t^2 /10) B. x=2t, y=8t-(4t^2/10) C. x=2t, y=4t-(4t^2/10) D. x=.5t, y=2t-(t^2/10) E. x=t, y=t-(t^2/10)
*April 17, 2013 by Chris Math Hw Help*

**Calculus (Limits)**

Let f be defined as follows, where a does not = 0, f(x) = {(x^2 - 2a + a^2) / (x-a), if x does not = a 5, if x = a Which of the following are true about f? I. lim f(x) exists as x approaches a II. f(a) exists III. f(x) is continuous at x = a. A. None B. I, II, and III C. I ...
*October 22, 2011 by Mishaka*

**Calc**

Can someone help me with this calc problem? lim as x->0 (tan^3 (2x))/(x^3)
*January 8, 2009 by Nick*

**help chem!:/**

a) Calc. PH of 0.010 M HF and 0.030 M KF e) calc. PH Zn(OH)2 in wAter
*March 15, 2012 by ALISON*

**Pre Calc**

Does this: sqrt 3x-4=(x-4)^2-3 Multiply out to: x^4-16x^3+90^2-211x+173 I then need to put it in the graphing calc and see what the roots are.
*September 10, 2009 by muffy*

**astronomy**

The parallax of the red giant Betelguese is just barely measurable and has a value of about 0.005 arc seconds. What is its distance? Suppose the measurement is in error by + or -0.003 arc seconds. What limits can you set on its distance? 1/0.005 = 200 parsecs. Convert that to ...
*April 30, 2007 by rohit*

**calc**

i need to sketch a graph that satisfies all of these conditions: - it is defined for all #s except 0 - f(1) = 0 f(2)=2 f(3)=1 - f'(2)=0 f''(3)=0 - f''(x)<0 when x<0 and when 0<x<3 - f''(x)>0 when x>3 - lim x->0 = -inf - lim x->inf = 0 - lim x->-inf...
*November 15, 2006 by kooldude*

**statistics**

if i have k = 36.86 +/- 4.78 and v = 113 +/- 9.92 both using 95% confidence limits and no true values of k or v given am i right in saying that accuracy cannot be determined and that v is a more precise measurement my question was to comment on what can be said about the ...
*January 18, 2010 by jemmy*

**statistics**

if i have k = 36.86 +/- 4.78 and v = 113 +/- 9.92 both using 95% confidence limits and no true values of k or v given am i right in saying that accuracy cannot be determined and that v is a more precise measurement my question was to comment on what can be said about the ...
*January 18, 2010 by jemmy*

**Calc or Pre calc**

I am having trouble doing this problem. I know how to do indefinate integrals, but I don't know how to do definate integrals. Can you show me how to do this. Evaluate 5 (x^3-2x)dx 2
*May 14, 2008 by jennifer*

**Math**

If (a,-3) is a point on the graph of y=x^2+4x, what is the value of a? so far i have -3=x^2+4x i can do the problem on my graphing calc but we can't use a graphing calc on the test so i need to know how to do it by hand. what do i do next?
*January 20, 2010 by Karen*

**calc**

i need to find the definite integral from 0 to 2|b| of .... x divided by sqrt(x^2 + b^2) dx im having a lot of trouble, thanks in advance Let u = x^2 + b^2 du = 2x dx The integrand becomes (1/2) u^(-1/2) du and the integral of this is u^(1/2) = sqrt(x^2 + b^2) Evaluate this ...
*January 31, 2007 by tyler*

**maths **

if i have k = 36.86 +/- 4.78 and v = 113 +/- 9.92 both using 95% confidence limits and no true values of k or v given am i right in saying that accuracy cannot be determined and that v is a more precise measurement my question was to comment on what can be said about the ...
*January 19, 2010 by lucy*

**Pre-Calc**

I'm stuck on a pre-calc problem. I need to find y as a function of x, where the constant c is a positive number for In(y-1)+In(y+1)= -x+c express your question as ln[(y-1)(y+1)] = -x+c change that to exponential form e^(-x+c) = (y-1)(y+1) e^(-x+c) = y^2 - 1 y^2 = e^(-x+c) + 1 ...
*May 9, 2007 by Sarah*

**calc check: average value**

Find the average value of the function "f(x) = x^2 sqrt(1+x^3)" on the interval [0,2]. and this is what i did.. please check for mistakes. thanks :D f(x) = x^2 sqrt(1+x^3), [0,2] f ave = (1/(b-a))*inegral of a to b for: f(x) dx f ave = (1/(2-0))*integral of 0 to 2 for: x^2 ...
*June 30, 2007 by COFFEE*

**Pre-Calc**

Can you show me how to find the rectangular equation of r=2costheta + 3 sin theta All I need is an example to work off I was absent today from Pre-Calc and I have homework to do and no explanation with them-Please help with this one Thank you
*October 3, 2011 by Leah*

**calc - limits**

I have been trying to figure out these limit problems and I get stuck on trying to move the function around to make it possible to solve. The first one is: lim sinx - cosx / tanx - 1 x--> (pi/4) All I've gotten so far is to replace tanx with sinx/cosx but I don't even know ...
*September 19, 2011 by terra*

**stats**

3. The mean family income in Arizona is about $64,750 with a standard deviation (for the population) of $59,750. Imagine that you are taking a sample of 200 randomly selected state residents. (a) What is the probability that your sample mean is between $61,000 and $64,750? (b...
*July 26, 2012 by taylor quenzler*

**Statistics**

Can you please help with this question. The only thing that I have come up thus far is that I am using the z critical value because I am estimating a population proportion. Am I on the right track? An important issue facing Americans is the large number of medical malpractice ...
*March 25, 2008 by Jim*

**Calculus/College Algebra**

I'm so lost. We're working on limits for this assignment and I get that, but my difficulty lies in breaking down the original problem. The problem is: Find the limit: lim (x->5) The numerator is (the square root of 9-x) -2 and the denominator is x-(the square root of x+20...
*February 7, 2007 by Amy*

**C code**

Write a .c file named calc that: - Takes arguments from the command line - Solves a simple math problem - Returns the result as an exit status calc.c: //this is the function that gets called when the executable is run. int main(int argc, char * argv[]){ //I've given you the ...
*February 6, 2013 by Nick*

**statistics**

in certain manufacturing processes parts must be machined tonwithin specified tolerences. the parts must have a mean length of of six inches plus or minus 0.26 inches .A SAMPLING PROCEDURE HAS BEEN ESTABLISHED to determine wether the ten parts are within the specified ...
*March 16, 2010 by deedee*

**Business law**

The Supreme Court threw out a $79.5 million punitive-damages award against cigarette maker Philip Morris. The high court voted 5-4 to overturn the jury verdict in the Oregon case, ruling it violated earlier high court decisions on limits to punitive damages. The decision could...
*February 23, 2007 by Mike*

**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 ...
*October 13, 2010 by CMM*

**Statistical Quality Control /UCL's & LCL's**

PLEASE HELP me solve the following problem: A computer diskette manufacturer is concerned that some diskettes have bad sectors that would cause a diskette to hold less information that it was intended to hold. In the past, only 5% of these diskettes have had bad sectors. If ...
*February 4, 2012 by Lisa*

**chemistry**

liquid heptane C7H16 is completely combusted to produce CO2 and H2O: C7H16 + 11O2 --> 7CO2 + 8H2O the heat combustion for one mole of C7H16 is -4.85*10^-3 CO2 heat of comb. = -393.5 H2O h of c= -285.8 a) calc. the vale of heat of cumbustion for C7H16 in kJ/mol a .0108 mol ...
*March 10, 2010 by hilde*

**writing**

How do performance-enhancing drugs deprive non-users of thier victories? This question seems pretty straight forward. Athletics is about pushing the body to its limits to take on other athletes, nature, or some other physical obstacle. Genetics plays a part in this competition...
*September 1, 2006 by Sassie*

**programming**

where are the errors the pseudocode debugging exercise // This application reads student typing test data // including number of errors on the test, and the number // of words typed per minute. Grades are assigned based // on the following table: // Errors // Speed 0 1 2 or ...
*September 15, 2013 by Andre*

**Limits**

Lim (tan^2(x)/x) x->0
*August 29, 2010 by Vivian *

**LIMITS**

lim [cotx - (1/x)] x-->0
*May 23, 2013 by help pls *

**maths, limits **

lim of x to 0 = x^2+1
*August 24, 2013 by dlvan*

**Limits**

Lim of [1/(3+x)]-(1/3)/x as x approaches 0 is?
*September 14, 2014 by Tracy*

**limits**

lim as x-> infinity sec^2(1/x)
*November 7, 2009 by Reen*

**Math**

integral [((log(1+x))/(1 x^(2)))] .... limits: [0,1]
*May 20, 2010 by Lalo*

**math**

ingrating e^((-)x^2)in the limits 0 and infinity
*April 17, 2011 by sai nishanth*

**Calculus**

Find the Limits. lim [t^3 + 3t^2]/[t^3 - 4t^2] t->0
*October 8, 2011 by Nemo*

**Math - Calculus**

how to solve limits?
*July 9, 2012 by John*

**Limits**

The limit as x approaches 0 of (tan2x)/3x = ?
*September 11, 2012 by DuDu*

**Limits**

What is the limit of (sinx)/x As x approaches 2?
*September 11, 2012 by DuDu*

**Math - Limits**

What is the derivative of f(x) = 10 + sqrt(2x + 32)?
*October 13, 2013 by Anonymous*

**AP Calc B/C**

The base of a solid is the region enclosed by y=x^3 and the x-axis on the interval [0,4]. Cross sections perpendicular to the x-axis are semicircles with diameter in the plain of the base. Write an integral that represents the volume of the solid. I drew a picture, but I ...
*December 15, 2014 by Anon*

**Calculus**

Using the first of these limits, find f'(3) if f(x)=4x^2+4x-2
*September 3, 2009 by Z32*

**social studies**

what are the limits of the legislative branch
*January 26, 2010 by amber*

**math**

what is the horizontal limits of : (10x^3-11x^2-2x)/(7-8x^3)
*October 11, 2010 by Marshall Mathers*

**psychology**

what is the design, purpose and the limits of an I.Q test?
*February 13, 2011 by Tim*

**Calculus**

Evaluate the following limits (x^2 + 2x - 8)/x-2 Lim x->2
*April 29, 2013 by Drew*

**limits**

evaluate the limit as x approaches 0 (1/x/-1/sins)
*April 30, 2013 by sol*

**Math - Limits**

Find the derivative of f(x) = 1000 / (0.1x + 1) where 10 <= x <= 70
*October 14, 2013 by Anonymous*

**Calculus**

Show, using limits, that f(x) = x2 – x + 3, is continuous at x = 2.
*March 12, 2014 by Anonymous*

**STATISTICS**

The manager of an accounting office is studying the problem of incorrect account numbers being entered into the computer system and wishes to produce a p chart. A subgroup of 200 account numbers is selected from each day's enteries and checked to determine the number of ...
*April 16, 2013 by Bettie*

**Staatistics**

2 Packets of crisps from a production line have a weight distribution that is normal with a mean of 50.0 grams and a standard deviation of 2.0 grams. Samples are taken of size 36. 1. What is the probability that a sample mean is less than 49.0 grams? (Give answer to four ...
*December 14, 2014 by Natacha*

**Calculus - Limits**

lim x--> 3 (3 - x)/ (x^2 - 9) I know the answer is -1/6, but I can't figure out how to get there.
*September 19, 2007 by Jimmy*

**12th grade**

how do you solve limits that have infinities!?
*September 2, 2008 by Megan*

**calculus**

Evaluate the Integral ∫1, 0 x^3(1+x^4)^6dx where 1=b 0=a for the limits
*April 30, 2011 by noell*

**Calculus**

Find the indicated limits. Lim x-> 1- sqrt 1 - 1/ x-1
*June 6, 2011 by Robo*

**History**

The _____ limits the actions of government leaders.
*April 6, 2012 by Zach Ketchup *

**maths**

Integrate ( x^2cosx)/(1+sinx)^2 dx with limits form 0 ti pi/4
*February 16, 2013 by Anonymous*

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