Sunday

April 20, 2014

April 20, 2014

Number of results: 6,022

**CALC-LIMITS**

F(X)= x-2/(x^2-4) is continuous at x=1 and why as limits approach from 1+ and 1-
*Wednesday, December 19, 2012 at 4:28pm by daryl*

**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).
*Saturday, January 22, 2011 at 2:09pm by John*

**Calc**

First find the intersections between the two curves, they are the limits of integration. They can be found readily as x=±2. Next, we check that the curves do not cross the axis y=-1 between the limits of integration. Otherwise the limits of integration must change. Now ...
*Thursday, December 15, 2011 at 7:15pm by MathMate*

**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+...
*Friday, February 16, 2007 at 11:43am by Robert*

**CALC-LIMITS**

why what? limit as x -> 1 from either side is (-1-2)/(1-4) = -3/-3 = 1 one would expect this, as f is continuous.
*Wednesday, December 19, 2012 at 4:28pm by Steve*

**Pre Calc.**

Use limits to describe the behavior of the rational function near the indicated asymptote f(x)=3/x-4
*Monday, November 1, 2010 at 8:49pm by L.*

**calc helppppp**

use limits to find and verify all asymptotes in the graph y= sqr root (5+x^2)/(3-x)
*Sunday, February 12, 2012 at 6:20pm by adrina *

**math**

-•-+-+-+-0-+-+-+-+-5-+-+-+-+-•-+-+-+ The interval notation uses square brackets [] to enclose the lower and upper limits when the limits are included in the interval. Parentheses () are used if the limits are excluded. In this case, the limits of -4 and 10 are ...
*Wednesday, November 25, 2009 at 8:56pm by MathMate*

**calculus**

The triangle is bounded by x-axis x=1, and y=x. The integrals can be carried out in order dx, then dy or vice-versa. However, integrating with respect to dy first makes for an easier integration (in the evaluation of I). Be very sure you understand how the limits are obtained...
*Monday, April 2, 2012 at 3:30am by MathMate*

**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.
*Monday, July 14, 2008 at 1:26pm by Derek*

**CALC-LIMITS**

oops. I did x -> -1 limit as x -> 1 is (1-2)/(1-4) = 1/3 Makes sense, since f(x) = 1/(x+2) for x ≠ ±2
*Wednesday, December 19, 2012 at 4:28pm by Steve*

**Calc**

Hmmmm. YOu must be only in limits,not yet to derivatives. If there is a function f(x), the derivative is defined as... lim d>>0 of (f(x+d) -f(x))/d
*Thursday, September 10, 2009 at 6:22pm by bobpursley*

**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!
*Friday, April 22, 2011 at 11:16am by Samantha*

**calculus, limits, l'hopital**

Thanks. I made a really stupid error. You've been very helpful in answering my calc questions. I really appreciate it.
*Sunday, February 13, 2011 at 3:08pm by Kate*

**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 ...
*Sunday, September 28, 2008 at 8:15pm by Michael*

**CALC**

If you are finding the area bounded by y=1, y=54.6(approx), x=0, x=4, and f(x,y)=e^x, or any other one-to-one function, and if the limits for ∫e^x dydx are y=1,f(x,y), x=0,4 then changing the order could be: x=e^x to 4, y=1, e^4. However, it depends on the properties of ...
*Wednesday, December 1, 2010 at 11:21pm by MathMate*

**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
*Wednesday, October 3, 2007 at 9:46pm by Chii*

**Calc II**

You will need to integrate the function f(x)=xsin(x)-x =x(sin(x)-1) between 0 and π/2. Since we are looking for the area, we have to make sure that the function f(x) remains positive within the limits of integration. Since f(0)=0, f(π/2)=0, and f(x) is positive between ...
*Friday, June 25, 2010 at 9:00pm by MathMate*

**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!
*Sunday, July 15, 2012 at 2:04pm by Anonymous*

**Calculus**

we know these limits exist as h->0: (f(a+h)-f(a))/h (g(a+h)-g(a))/h sum of limits is thus (f(a+h)-f(a) + g(a+h)-g(a))/h = (f(a+h)+g(a+h) - (f(a)+g(a))/h = ((f+g)(a+h) - (f+g)(a))/h the limit is d(f+g)/dx at x=a
*Monday, October 15, 2012 at 11:37pm by Steve*

**calculus (limits)**

Use limits to explain why f(x)= (7-3X)/(X+9) has a vertical asymptote.
*Saturday, January 21, 2012 at 11:03pm by k*

**College Calculus**

Improper integrals implicitely imply taking limits of the upper and/or lower limits of the integration.
*Thursday, February 28, 2008 at 7:59pm by Count Iblis*

**Calculus - MathMate Please help**

nope, you are wrong. I got the correct answer. area1 and area2 are not equal to each other since their limits are DIFFERENT. for area1, the limits should be (from 0 to c/2) and for area2. the limits should be (from pi/2+c to pi). by solving it i got the value for c. Thank you ...
*Monday, November 29, 2010 at 6:42pm 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 ...
*Friday, March 2, 2007 at 8:28pm by kev*

**calc**

The absolute maximum and absolute minimum of implicit equations are difficult to find because of the uncertainty of the number of local maxima and minima. For a quadratic equation, we know that there is only one single maximum/minimum which will automatically be the global ...
*Thursday, November 5, 2009 at 4:32pm by MathMate*

**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...
*Friday, July 26, 2013 at 6:00am by Andrew*

**calculus**

let u=(7-4x) then du=4dx so the integration is now.. INT u^2 du/4 limits from 7 to 3 looks like u^3/12 limits 7 to 3 check that
*Thursday, October 10, 2013 at 10:10am by bobpursley*

**Calculus**

TWO examples of each of the following: two sided limits and theorem on limits (SUM, difference, product, quotient, nth root, ).
*Wednesday, August 29, 2012 at 3:12am by Anne*

**Calculus**

I'm having trouble interpreting your variables and limits. c,d are the limits on dy? That's odd, since I'd expect functions of y to be limits on dx. Anyway, interpreting it as ∫[0,√12]∫[y^(1/3),sqrt(16-y^2)] dx dy I get 15.8, twice your answer I tried to get ...
*Wednesday, March 21, 2012 at 4:07am by Steve*

**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!
*Monday, September 5, 2011 at 4:26pm by Michael*

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

Lower limits = mean - 3(sd/√n) Upper limits = mean + 3(sd/√n) mean = np sd = √npq n = 500 p = .05 q = 1 - p Calculate the lower and upper limits using the mean, standard devation, and sample size. I hope this helps.
*Saturday, February 4, 2012 at 7:03am by MathGuru*

**brief calc**

you are integrating from y=0 to sqrtx and from the lines x=0 to 16 Area=INT (y(x)-y(0))dx from x=0 to 16 = INT sqrt(x)dx =2/3 * x^3/2 and over the limits = 2/3 (16^3/2-0)=2/3 (4^3) you finish
*Wednesday, November 6, 2013 at 9:05pm by bobpursley*

**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...
*Thursday, March 22, 2012 at 4:32pm by Sean*

**Math >> limits**

The limit is of the form: Lim x--> 0 f(x)/g(x) where f(0) = g(0) = 0. So we can't take the limits for f and g separately and divide them. Rewrite the limit as: Lim x--> 0 [f(x) - 0]/[g(x) - 0] = Lim x--> 0 [f(x)-f(0)]/[g(x)-g(0)] Lim x-->0{[f(x)-f(0)]/x}/{[g(x)-g(0...
*Wednesday, September 5, 2007 at 6:57am by Count Iblis*

**physics**

Work is conservative, so do the x first, then the y. work=INT f.dx + int f.dy = INTkq1q2/x^2 dx+ int kq1q2/y^2 dy = kq1q1 (1/x)over limits + kq1q2 (1/y)over limits limits x .140 to .230 ; y 0 to .290
*Wednesday, February 22, 2012 at 8:43am by bobpursley*

**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 ...
*Wednesday, March 21, 2012 at 10:50pm by Mary*

**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.
*Thursday, February 28, 2013 at 11:31pm by Blah*

**Calculus**

TWO examples of two sided limits and each theorem on limits.
*Wednesday, August 29, 2012 at 12:48am by Nicole*

**Calc-Limits**

I assume the question is asking lim from n toward infinity (note additional parentheses): [1+ ((-1)^n)/n ] From the basic laws on limites, we can take this as: Lim [1+((-1)^n/n] = Lim 1 + Lim (-1)^n*(1/n) = 1 + Lim (-1)^n * Lim (1/n) = 1 + Lim (-1)^n * 0 = 1 The Lim (-1)^n is ...
*Saturday, February 5, 2011 at 9:12pm by MathMate*

**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)
*Wednesday, February 17, 2010 at 12:12pm by Ren*

**Calc**

You have to choose whether you are integrating with respect to x or y, and keep the other variable fixed. If you are integrating in the x,y plane with respect to both x and y, then you have to define limits of integration or a closed boundary in the x,y plane that you are ...
*Saturday, November 21, 2009 at 1:09am by drwls*

**Statistics**

Here's what you will need to answer this question: Lower limits = mean - 3(sd/√n) Upper limits = mean + 3(sd/√n) sd = standard deviation n = sample size You will need to calculate the mean and standard deviation from the data given. Once you have those values, you ...
*Friday, January 30, 2009 at 9:36pm by MathGuru*

**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 ...
*Wednesday, December 2, 2009 at 1:10pm by Greg*

**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 ...
*Sunday, March 4, 2012 at 12:34am 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.
*Wednesday, March 13, 2013 at 1:22pm by Angie*

**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)
*Tuesday, October 25, 2011 at 9:19am by Yousef*

**Calc 3**

one good way to tackle xy limits is to convert to polar coordinates, then let r->0 f(r,theta) = r^2/(sqrt(r^2+64)-8) now, using lHospital's Rule, lim = 2r/[2r/(2sqrt(r^2+64))] = 2sqrt(r^2+64)) = 2*8 = 16 Since the function does not involve theta, the limit is the same from ...
*Friday, September 14, 2012 at 5:41pm by Steve*

**calc**

You need to include absolute value signs in the argument of the logarithm: ln|x-1| from 0-1 and ln|x-1| from 1-2 What you find is that both the limits diverge logarithmically, so the integral doesn't exist. However, if you add both the terms together and take the limit in one ...
*Saturday, February 9, 2008 at 6:34pm by Count Iblis*

**pre-calc**

oops! don't know why I put AP Calc, it's actually pre-calc....
*Friday, September 18, 2009 at 8:52pm by muffy*

**ap calc**

OOPS, I meant Pre-Calc not ap Calc sorry
*Saturday, October 10, 2009 at 2:45pm by MUFFY*

**Algebra**

For the interval notation, ( and ) correspond to excluding the lower and upper limits. While [ and ] imply the inclusion of the lower and upper limits. The two limits are separated by a comma. Thus [-5,8) is the same as {x|-5=<x<8} So the correct answer would be: (...
*Wednesday, June 3, 2009 at 4:47pm by MathMate*

**statistics**

The confidence limits use the mean and the standard deviation (mean ± 1.96 SD for 95% confidence interval)). The less variable the confidence limits (lower SD), the more accurate/precise the estimate is. I hope this helps.
*Monday, January 18, 2010 at 9:42am by PsyDAG*

**math**

Find the number of standard deviations from the mean (above) for each of the limits. For example, (161.28-138)/9.7 = 2.4 So look up the normal distribution table and find the fraction (out of 1) that is between the two limits, +2.4 σ and +____ σ. Change the ...
*Friday, October 9, 2009 at 10:58pm by MathMate*

**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 ...
*Monday, July 2, 2007 at 2:58pm by COFFEE*

**particle in a box**

I'm actually working on this same problem and in a desparate attempt found this online looking for help. I'm still slightly confuse about the limits of integration and what to use for V(x). When integrating how do you handle the V(x) term? With the limits (from a => a+b) ...
*Sunday, April 19, 2009 at 1:01am by Joe*

**Limits**

Huh? cos ( pi *16 /8 ) ?? cos 2 pi = 1 I do not see what this has to do with limits
*Thursday, February 20, 2014 at 4:15pm by Damon*

**Algebra**

[-8,infinity) represents the interval from -8 inclusively [ to infinity exclusively ). [] are used to mean including the limits. () or ][ are used to mean excluding the limits. The above interval is the same as -8 ≤ x < ∞
*Friday, July 24, 2009 at 6:19pm by MathMate*

**In Need of a Mathmetician!!!!**

Hint: Write the formula for its movements in the x direction only. Also write the formula for its movements in the y direction. Both of your equations will have limits. Your coordinate solution will be the limits as the ant moves an infinite number of times.
*Monday, December 3, 2007 at 3:14pm by Leo*

**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 ...
*Friday, January 30, 2009 at 9:36pm 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 ...
*Wednesday, October 30, 2013 at 6:44am 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 ...
*Wednesday, November 20, 2013 at 11:37pm by Ava*

**MATH please help!**

Jessica's answer is correct. To find the answer, you would need to check if each set has a lower limit AND an upper limit. If both limits exist, and you're dealing with integers, the set is finite. If one or both of the the limits is missing, the set is infinite.
*Monday, December 13, 2010 at 10:49pm by MathMate*

**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 ...
*Thursday, November 7, 2013 at 10:43pm by Lisette*

**Fluid Mechanics**

I would integrate the force, in bands. Consider the taper (we will do one half, then use symettry).. let the x=0 axis be the center of bottom, so x will go from 0 to 15 cm at the bottom find the equation of the slope of the side: y=mx+b 90=(90-0)/(45-15) x + b 90=3x+b at the ...
*Tuesday, November 2, 2010 at 12:06pm by bobpursley*

**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 ...
*Monday, August 9, 2010 at 8:16am by MTHOMBENI BAFANA*

**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 ...
*Tuesday, October 7, 2008 at 4:22pm by Elizabeth*

**Calc**

Can someone help me with this calc problem? lim as x->0 (tan^3 (2x))/(x^3)
*Thursday, January 8, 2009 at 4:22am by Nick*

**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...
*Saturday, April 21, 2007 at 10:05pm by Me*

**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% ...
*Thursday, July 26, 2012 at 9:01pm by taylor quenzler*

**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?
*Monday, February 25, 2013 at 6:00pm by dylan*

**math**

A rational number is any number which can be expressed as a fraction of two integers. The set of all rational numbers is ℚ. The answer would be any rational number between 1/8 and 2/4, i.e. find x where 1/8<x<2/4 x∈ℚ. Draw the two limits, 1/8 and 2/4 on ...
*Monday, December 14, 2009 at 8:36am by MathMate*

**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...
*Wednesday, March 12, 2014 at 6:13am 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...
*Thursday, March 13, 2014 at 2:45am by MS*

**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. ...
*Tuesday, July 13, 2010 at 1:08pm by Dani*

**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 ...
*Monday, April 30, 2007 at 1:45am by rohit*

**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.
*Thursday, September 10, 2009 at 8:34pm by muffy*

**Pre-Calc/Calc**

Looks like C to me
*Wednesday, April 17, 2013 at 11:05am by Steve*

**Algebra**

x < 0 or 7< x < 9 Split into two parts: x < 0 (-∞,0) i.e. from negative infinity to 0, excluding both limits using the parentheses. 7< x < 9 (7,9) i.e. from 7 to 9, again excluding the two limits. Now put them together with the union notation, ∪ (-&...
*Saturday, July 25, 2009 at 6:45pm by MathMate*

**Calc. Repost- Please Help**

f(x) and g(x) are discontinuous functions defined each by two lines of different slopes and a point at the discontinuity, exactly as you described it. Before finding f(g(x)), you will need to find out the different intervals on which both f(x) and g(x) are continuous, for ...
*Wednesday, October 13, 2010 at 12:50am by MathMate*

**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 ...
*Saturday, October 22, 2011 at 7:30pm by Mishaka*

**English**

The sentences aren't bad; just wordy! 1) The ship comes out of the boundless deep because it symbolizes our transportation to heaven. 2) The ship arrives on earth to pick up “passengers”, the souls of the dead, and then retuns to heaven. 3) The phrase "the boundless deep" ...
*Saturday, August 20, 2011 at 12:21am by Writeacher*

**Pre-Calc**

For this kind of problem, it is always desirable to make a sketch within the limits of the domain, from x=-9 to 18. See: http://img510.imageshack.us/img510/2928/1291868155.png Using the formula for the area of a triangle as: Area = (1/2)base*height You can find the areas of ...
*Wednesday, December 8, 2010 at 11:15pm by MathMate*

**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
*Wednesday, May 14, 2008 at 9:42pm by jennifer*

**help chem!:/**

a) Calc. PH of 0.010 M HF and 0.030 M KF e) calc. PH Zn(OH)2 in wAter
*Thursday, March 15, 2012 at 9:03pm by ALISON*

**Math - Compound**

Quarterly componding of interest after one year at 6% annual rate gives you an annual yield of (1 + 0.06/4)^4 - 1 = 6.136% Continuous compounding requires you to consider limits. The answer is Limit (as n approaches infinity) of 1 + 0.06/n)^n - 1 Calculus shows that this ...
*Saturday, January 24, 2009 at 4:48pm by drwls*

**Calculus**

area=int y dx over limits area=int(1/3 x^4 -4) dx area= 1/15 x^5 -4x over limits area=1/15-4-(-1/15+4)=2/15-8 reduce that. Area negative means below the x axis. area= 7 13/15= 7.866 And here is a neat numerical integration applet to demonstrate it. enter xo=-1, x1=1, 10 steps...
*Thursday, December 8, 2011 at 11:55pm by bobpursley*

**Maths**

You can graph it, if you calc is a graphing calc. graph y=x^2+8x+5, where it crosses the x axis, is the solutions.
*Thursday, September 17, 2009 at 6:00pm by bobpursley*

**Calc**

To find the absolute maximum of a function within a finite domain, you can do: find f'(x) and equate to zero to find the relative maxima and minima. In this case, f'(x)=0 at x=1 and x=3. By checking with f"(x) or otherwise, you will find that x=1 is a minimum, and x=3 is a ...
*Tuesday, March 19, 2013 at 5:49pm by MathMate*

**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 ...
*Wednesday, May 9, 2007 at 12:36pm by Sarah*

**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 ...
*Monday, January 18, 2010 at 11:16am 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 ...
*Monday, January 18, 2010 at 6:14pm by jemmy*

**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...
*Wednesday, October 13, 2010 at 1:47pm by Chelsea*

**Math**

It is math, i take a pre-calc/calc class. sorry!
*Sunday, September 28, 2008 at 4:49pm by sam*

**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 ...
*Tuesday, January 19, 2010 at 3:20am by lucy*

**CALCULUS**

I will answer #1. repost for #2 and #3 if necessary. A vertical asymptote is typically caused by the denominator becoming zero. The function is undefined at this point. The limits of the function from left and right may or may not be the same, and are usually ±&infin. A...
*Thursday, September 30, 2010 at 11:15pm by MathMate*

**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
*Monday, October 3, 2011 at 6:33pm by Leah*

**Calculus**

As I noted in my original answer, there is an inconsistency in the specified limits of integration or "boundaries" of your enclosed area. The spiral curve r = 2 theta starts at theta = 0 and ends at theta = 1.5 pi. The straight line theta = pi is the -x axis. It is not clear ...
*Saturday, February 6, 2010 at 4:17am by drwls*

**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...
*Wednesday, November 15, 2006 at 11:00am by kooldude*

**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?
*Wednesday, January 20, 2010 at 10:29pm by Karen*

**business law**

Miguel resides in Texas until he establishes a new residence state: He is a Texas Resident, and may be sued in Texas. Miguel may be sued in Oklahoma, as the accident occurred there. Miguel may be sued in Washington, if Miguel is served with a summons there. If the injuries are...
*Thursday, May 6, 2010 at 9:07am by bobpursley*

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